Air bubble mailers Adart K20 — padded shipping envelopes, pack of 50

Adart K20 air bubble mailers are padded shipping envelopes sold in a pack of 50. These bubble-lined mailers combine a lightweight outer layer with an internal air-cushion lining to protect small to medium items, documents and fragile goods during postage and courier transport. The self-seal closure simplifies packing and speeds up order fulfillment while keeping contents secure in transit.

Advantages

Adart K20 mailers offer impact-dampening protection thanks to their internal bubble layer while remaining lightweight to help control postage costs. The envelopes are supplied in a versatile 50-piece pack suitable for regular shipping needs, and the self-seal strip provides a quick, consistent closure without extra tape. Their padded construction reduces the risk of product damage for a range of small items and paperwork during handling and delivery.

Suitable for

• E-commerce order shipments of non-fragile to moderately fragile items
• Shipping small electronics, accessories and components
• Mailing documents, brochures and paperback books
• Returns and exchange shipments

Key specifications

• Padded envelope with internal air bubble lining for cushioning
• Self-seal adhesive closure for fast packing
• Pack quantity: 50 envelopes
• Lightweight construction to help reduce postage costs
• Suitable for small to medium-sized items and documents

How to use

Place the item centrally inside the bubble mailer on top of the cushion layer, ensuring any sharp edges are protected. Remove the protective strip from the self-seal adhesive and press the flap firmly to close. For heavier or irregularly shaped items, consider additional internal padding or protective wrapping to prevent concentrated pressure on the envelope. Label or affix the postage and address details on the outside surface, avoiding placement over the seal area.

Usage recommendations

Choose the appropriate envelope size for the product to avoid excessive movement inside the mailer. For fragile items, combine the bubble mailer with extra internal padding or a small protective box. Store unused mailers flat in a dry place away from direct sunlight to maintain adhesive and material performance.