








A4 Self Sealing Mailing Box 310 (Quick Buy)
Minimum Order Quantity 25 Units
Maximum Order Quantity Units
Order In Lots Of 25 Units
Pack smarter, faster, and without the hassle of tape. Our Self-Sealing Heavy Duty Mailing Boxes are designed to save time while keeping your items safe in transit.
- The images show the box supplied flat-packed for efficient storage.
- When folded, the sturdy brown kraft board forms a rigid protective shell.
- A self-sealing adhesive strip is built into the top flap – simply peel away the liner and press down to securely close.
- No tape, no glue, no extra fuss.
Easy to Use – In 3 Simple Steps
1. Fold: Pop the flat-packed box into shape along the pre-creased fold lines.
2. Pack: Place your product inside the strong cardboard walls, which resist crushing and bending.
3. Seal: Peel off the protective strip from the adhesive flap and press down firmly for a tamper-evident, secure closure.
Key Features
- Heavy Duty Strength: Made from thick kraft cardboard to protect small, valuable items.
- Time-Saving: Built-in peel & seal strip means no need for tape or dispensers.
- Professional Look: Clean kraft brown finish for a neat presentation.
- Eco-Friendly: 100% recyclable cardboard, supporting sustainable packaging.
- Bulk Value: Supplied in cartons of 100 for efficient shipping and storage.
Perfect for eCommerce businesses, retailers, or anyone who needs a quick and reliable packing solution, these boxes are a smart way to ship with confidence.
| Product Code |
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| Internal Dimensions | 310 x 225 x 102mm (length x width x height) |
| Material | 100% Recyclable Heavy Duty Cardboard - E Flute |
| Product Design | Strong Self-Locking One Piece Mailing Box |
| Product Purpose | Packaging, Shipping & Storage Boxes |
| Location | |
| Print Options |
Delivery Information
How long will my order take to ship?
Here at PackQueen, we offer a variety of products, including stocked and made-to-order options. Lead times are specified under the product name.Please keep in mind that lead times can occasionally vary, especially during busy periods. However, we do our best to accommodate fast track requests. If you have an urgent order, kindly reach out to our team before placing it.
What Shipping Options do you have?
We provide reliable delivery options both within Australia and internationally. Our Australian delivery partners include Direct Freight, Australia Post, DHL and Australia Post Express Courier.Do you offer Click & Collect?
We offer a click and collect option at our Thomastown warehouse. You can place your order online and opt to personally collect your order from our warehouse or arrange for a courier to do so. Once your order is ready, we will promptly notify you.What is the delivery cost?
To ensure transparency and convenience, our website calculates the delivery cost during the checkout process. This way, you'll have all the necessary information upfront.
Do you offer samples?
At PackQueen, we offer a full sample service of all our products. We highly recommend purchasing a samples for you to try our product before committing to a bulk order as we do not offer exchanges or refunds for change of mind purchases. Please get in touch with our team if you need help and recommendations for a particular product.

Title
Pack smarter, faster, and without the hassle of tape. Our Self-Sealing Heavy Duty Mailing Boxes are designed to save time while keeping your items safe in transit.
- The images show the box supplied flat-packed for efficient storage.
- When folded, the sturdy brown kraft board forms a rigid protective shell.
- A self-sealing adhesive strip is built into the top flap – simply peel away the liner and press down to securely close.
- No tape, no glue, no extra fuss.
Easy to Use – In 3 Simple Steps
1. Fold: Pop the flat-packed box into shape along the pre-creased fold lines.
2. Pack: Place your product inside the strong cardboard walls, which resist crushing and bending.
3. Seal: Peel off the protective strip from the adhesive flap and press down firmly for a tamper-evident, secure closure.
Key Features
- Heavy Duty Strength: Made from thick kraft cardboard to protect small, valuable items.
- Time-Saving: Built-in peel & seal strip means no need for tape or dispensers.
- Professional Look: Clean kraft brown finish for a neat presentation.
- Eco-Friendly: 100% recyclable cardboard, supporting sustainable packaging.
- Bulk Value: Supplied in cartons of 100 for efficient shipping and storage.
Perfect for eCommerce businesses, retailers, or anyone who needs a quick and reliable packing solution, these boxes are a smart way to ship with confidence.
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