100% Recycled Contents
Plastic Free
Sustainably Sourced
Tear Open Strip
Verified Carbon Neutral

(160x160x100mm) Brown Postal Box with Tape

Product Code: MBT3
Availabilty: In Stock

Our self-seal boxes make postal packaging sustainable and simple. These self-sealing boxes make packing a breeze and unboxing pleasure to behold! There’s no need for additional tape as they’re secured using a peel-away strip with adhesive underneath. Plus, they’re made from 100% recycled content for maximum convenience and sustainability.

From £0.49

Total Cost:
Order by 1pm Monday - Friday for next day delivery

Subscribe for 15% off your first order & new product alerts

100% Recycled Contents
Plastic Free
Sustainably Sourced
Tear Open Strip
Verified Carbon Neutral

Subscribe for 15% off your first order & new product alerts

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a little different?


Free Next Day Delivery 6 Days a week

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Parcel Tracking

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1-hour Delivery Slot

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Sustainably Sourced

Related Products

Internal Dimensions160x160x100mm (L X W X H)
External Dimensions180x165x105mm (L X W X H)
Material150T/T P
Royal Mail PiPSmall Parcel
ColourBrown Kraft
End of LifeBiodegradable, Home Compostable, Recyclable
Recycled Content100%
Sealing MethodPeel & Seal


Quick-seal postal boxes are a packaging game-changer. Take your postal packaging to new heights with self-seal cardboard boxes in a natural brown or white design. These boxes are not only visually appealing but also packed with features that transform the packaging process. With an integrated hot melt adhesive tape strip and a perforated tear-open strip, these boxes offer lightning-fast packing without needing extra tape and provide an accessible and uncomplicated unboxing experience for your customers.

Make a statement in the eCommerce world. Combine sophistication with convenience with our peel-and-seal postal boxes, eliminating the need for additional security features while ensuring your packages arrive safely. Don’t settle for ordinary packaging when extraordinary is just a peel away!

Why Choose Our (160x160x100mm) Self-Seal Brown Postal Boxes

At Packaging Supplies, we’re committed to promoting plastic-free packaging. Our postal packaging range surpasses traditional 0201-style cardboard boxes in both appearance and functionality. Designed with utmost efficiency in mind, these boxes feature a convenient peel-and-seal strip, enabling swift packing processes. This makes them particularly advantageous for large-scale packaging operations.

Crafted from single-wall corrugated cardboard, our quick-seal postal boxes are not only sturdy but also eco-friendly. Their user-friendly design allows for effortless assembly in less than 10 seconds, as they are shipped flat and unassembled as a single piece of cardboard.  Plus, you can save on packaging costs as you won’t need extra tape to secure these boxes.

Key Features of Self-Seal Boxes

Here are a few key features of our self-sealing boxes: 

Peel-and-seal closure: Experience unparalleled convenience with our postal boxes that feature a peel-and-seal closure. Packing and sealing have never been easier — simply load your product, peel away the protective strip, and firmly press the front flap to secure the box.

Tear-open strip: Our eco-friendly postal boxes are designed with a tear-open strip. This perforated strip allows for swift and hassle-free unboxing anyone can access. Your products will be revealed as the hinged lid effortlessly glides open!

Strong space-saving board: The board chosen for manufacturing these postal boxes has robust ‘P’ fluting. Compared to the commonly used ‘B’ flute, this thinner board offers remarkable strength while also enabling a space-saving advantage of accommodating 30-35% more boxes on a pallet. This reduction in our carbon footprint comes with no compromise on quality and performance.

Our Eco-Friendly Self-Sealing Boxes are Simply… Better

At Packaging Supplies, we recognise that paper-based packaging is leading the way in terms of recyclability and compostability.

Our self-seal postal boxes are a key part of our 100% recyclable range, crafted from 100% recycled paper. When it comes to environmentally friendly choices in eCommerce packaging, there is no better option!

Sustainability is at the core of our values at Packaging Supplies, and all our boxes, including our eco-friendly postal boxes, are made from recycled materials. These peel-and-seal boxes consist of 100% recycled paper, aligning with our carbon-neutral status and commitment to the environment.

By partnering with experienced packaging suppliers like us, you can reap the benefits of packaging that optimises storage space and minimises transport costs. We have a wealth of experience in a wide range of industries and offer Complete Packaging Services, such as Third-Party Logistics (3PL) and Inventory Management, to help you to keep track of your stock. As consumers increasingly demand sustainable business practices, we’re here to exceed those expectations. 

Frequently Asked Questions

Have questions about our self-seal postal boxes? You’ll find all the information you need right here. Whether you’re a new customer in search of details or an existing customer seeking clarity, you’ve come to the right place.

Self-seal boxes offer flexibility and security for a range of products, making them suitable for a variety of industries. They are commonly used for e-Commerce shipments, such as subscription boxes or for retail and gift packaging. Whether it’s clothing, electronics, office supplies, or presents for special occasions, self-seal boxes provide secure and effective packaging for smaller products. Their user-friendly design and reliable closure make them a practical choice for keeping items organised, shipped, or displayed effectively.

Customising peel-and-seal postal boxes has never been easier. If you require 1000 boxes or more, you have the opportunity to have your eco-friendly postal boxes custom printed; we can even print your designs with eco-friendly, water-based or vegetable inks. Simply get in touch with the Packaging Supplies team for a free quotation. Branded packaging allows you to personalise your packaging to reflect your brand identity, enhance product presentation, and create a unique unboxing experience for your customers. Custom packaging not only promotes brand recognition but also adds a professional touch to your shipments, making your products stand out in a crowded market.

Yes, if you’re looking to order larger volumes or pallet quantities regularly, contact us now to speak with our representatives. From 30-day accounts to stock and call-off options for custom printed boxes, we’ve got plenty of options and benefits. Expect prompt delivery on a next-day basis for in-stock items. Get in touch today, and let’s discuss how we can best support your packaging needs.

Exciting news! We are thrilled to announce that we now provide free next-day delivery for all orders delivered to the UK Mainland without any minimum order value. Enjoy fast and convenient shipping at no extra cost. To provide the best possible service, our courier deliveries are scheduled between 9am and 6pm with full tracking available. For detailed information regarding delivery processes, fees, and returns in other regions of the UK, visit our dedicated Delivery and Returns page or click the “Shipping and Returns” tab next to the description. There you’ll find all the relevant information there.

Don’t miss out on a world of choice! Start exploring our wide range of premium postal boxes and mailers today.

Deliveries by Couriers

Courier deliveries will be made between 9am – 6pm.

All deliveries must be signed for unless stated in the special instructions when placing the order.

Please open and fully check the contents of your delivery before signing to confirm receipt.

Tracking your parcels

As soon as your goods leave our premises they are tracked until they reach your door!

We partner with DPD for a reason, they offer the most in flexibility and customer service features. Once your goods are picked up from our depot, you will be notified via either the email addressed you provided or by text message on the telephone number you provide during the order process.

On the day of delivery, you will be given a 1-hour delivery slot, this means that you do not need to be in all day like other couriers. Through the DPD app or website you are able to track the route and name of your driver.

Going to be out whilst the delivery is taking place? No Problem, you can either change the delivery address or even request it be delivered to a local pick up point or store. Many stores including Halfords and Sainsburys support DPD pick-ups.

Click Here to visit the DPD website where you can enter your details. Alternatively, if you have a smart phone, you can download the DPD app from the Apple or Android Store.

Pallet Deliveries

Part-pallet or full pallet deliveries will be despatched through our pallet network or on our own vehicles.  You will be notified by email when your delivery is being despatched, but will be unable to track it online.  All pallet deliveries will be made between 8am - 6pm on the next working day.

International Deliveries

Once your order has been placed a quote for delivery will be generated and you will be contact prior to despatch to make payment.

Delivery Timescale

We aim to process and despatch orders for next business day delivery (subject to stock availability). But please allow 2-3 days for delivery.

Orders placed by 2pm Monday to Friday would normally be delivered next day (Sunday and bank holidays Excluded).  Please note pallet deliveries can only be delivered on a working day with Saturdays excluded.

In the event that the product ordered is out of stock, the customer will be contacted with an estimated delivery date.


UK Bank Holidays

Orders will not be processed during UK public bank holidays. Orders will be processed on the first working day back.

Delivery Charges to UK Mainland Destinations

We are extremely happy to announce that we offer free next day delivery to all orders delivered to UK Mainland, with no minimum order value.

Delivery Charges to Other UK Destinations

Deliveries outside of the UK Mainland, will be subjected to the following charges:

Parcel Rates to Northern Ireland

Pack 1 £5.50 per pack

Pack 2 £10.50 per pack

Parcel Rates to Scottish Highlands & Islands

Pack 1 £3 per pack

Pack 2 £6 per pack

Pallet Rates to Northern Ireland

Part Pallet £30 per part pallet

Pallet £35 per pallet

Pallet Rates to Scottish Highlands & Irelands

Part Pallet £30 per part pallet

Pallet £45 per pallet

For International deliveries, please contact us to check delivery cost before placing your order.

Returns Policy

Damaged or Defective Product Returns

If you have received damaged or defective products, we apologise in advance.  Please follow the guidelines below:

Please call us on the following number 01491 834000 or contact us via [email protected] . within 5 working days of receipt of the goods.  Refunds for damaged or defected goods can only be refunded when returned to Packaging Supplies within 10 working days of your delivery.

Packaging Supplies will arrange collection for any damaged or defective goods, however in the event that you miss your arranged collection date or time, then the return of the goods will become your responsibility.

Items must be made ready for collection with an order confirmation printed inside the parcel.

Standard No-fault Returns

Please call us on the following number 01491 834000 or contact us via [email protected] . within 5 working days of receipt of the goods.

Goods must be returned to Packaging Supplies within 10 working days from the date of your delivery.

You must obtain a collection quote from Packaging Supplies for the return of the items, which will vary in cost depending on the order quantity and size.

Items must be made ready for collection with an order confirmation printed inside the parcel.

Refunds will only be issued if all returned items are unmarked, undamaged and in a new condition with the inner packaging unopened.

Custom-made Product Returns

For damaged or defective products, please follow the advice above.

Refunds or returns for products that have been custom made or customized in any way will not be accepted unless they have been delivered damaged or defective.

Packaging Supplies will assess all custom-made return claims for damaged or defective products on a case by case basis.

Very efficient prompt service - good product and for once a company with a sense on pricing. Will use again.

Very good price, good quality and strong packaging, very good and easy no problem service, constant email updates, delivered when promised.

Brilliant fast delivery, came next day of order, always have what I need for a small upcoming business, so glad they don't make you buy too much, perfect boxes, thank you.

Great Service. Very simple ordering process. And great communication to keep updated on delivery.

Very quick delivery and boxes as described. Will order again for sure.

Easy to navigate website and package delivered next day. Product just what I needed and I would recommend this company.

Always on time and amazing service.

Really good quality my customers love them and I have most sizes now of the self seal brown boxes. I really like that Packaging Supplies is always looking to improve their sustainability too.

Service was fast and communication friendly and responsive.

Arrived quickly and in perfect condition and its great to see every part of the packaging was eco friendly. Will definitely be ordering again.

Great service, fast and exactly what they said they would do.

Fantastic customer service! I had an issue with my delivery and it was dealt with and resolved very quickly. I have used the company on numerous occasions - highly recommended for quick delivery and great products.

Completed all my requests with super fast delivery! Brilliant quality boxes too!

Quality products and fast delivery!

Quick delivery, good quality. Will use again!

Good quality product, great price and super fast free delivery!

Very good service and fast response. Product as described 5/5!

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Expert packaging suppliers for over 40 years, with an emphasis on plastic-free packaging

In the late 1970s, two friends and colleagues, Tim Allen and Stewart Middleton saw a gap in the market for a different type of packaging supplier. At the time, other businesses were selling custom made boxes and stocking packaging consumables, but Tim and Stewart wanted to offer more than that. They wanted to give their clients additional services, such as warehouse storage and the ability to have their packaging delivered as and when it was required. Packaging Supplies was established, and the rest is history.