180 x 180mm Rigid Cardboard Book Mailers – 400gsm Brown Peel & Seal Postal Packaging (Box of 100)

Strong, Protective & Convenient Postal Packaging

Keep your products safe during shipping with our 180 x 180mm Rigid Cardboard Book Mailers, designed to provide reliable protection for books, documents, printed materials and other appropriately sized flat items.

Manufactured from durable 400gsm corrugated cardboard, these brown postal mailers offer excellent rigidity and help protect contents against bending, knocks and everyday handling during transit.

Featuring a convenient peel-and-seal adhesive closure, these cardboard mailers make packing quicker and easier without requiring additional sealing tape. The integrated easy-open tear strip also provides a convenient opening experience for recipients.

Supplied in a bulk box of 100, these protective cardboard mailers are ideal for online retailers, book sellers, warehouses and fulfilment centres.

Key Features & Benefits

• Strong 400gsm Cardboard: Durable construction provides protection against bending, knocks and handling during transit.
• 180 x 180mm Internal Dimensions: Suitable for appropriately sized books, documents, printed materials and other flat products.
• Peel & Seal Closure: Self-adhesive sealing strip provides quick, secure packaging without additional tape.
• Easy-Open Tear Strip: Allows recipients to open their packages quickly and conveniently.
• Brown Kraft Finish: Offers a neat, professional appearance for postal deliveries.
• Protective Postal Packaging: Helps minimise the risk of damage during storage, handling and shipping.
• Paper-Based Packaging: A practical alternative to plastic mailing bags for suitable products.
• Bulk Box of 100: Ideal for businesses handling regular shipments and online orders.