Padded Self‑Sealing Bubble Mailers office products HK I19 300×445mm (320×455mm outer) 10 pcs white

Padded self-sealing bubble mailers by office products, model HK I19, provide lightweight padded protection for parcels and envelopes. The mailer measures approximately 300×445 mm on the inside and about 320×455 mm externally. Each white mailer includes an internal bubble-film lining that cushions contents against shocks and a self-adhesive strip for quick and secure closure. Packaged as a set of 10 pieces, these mailers are designed for shipping smaller fragile or sensitive items while keeping packaging simple and efficient.

Advantages

The internal bubble lining offers impact resistance without adding excessive weight, helping to reduce postage costs compared with heavier packaging. The self-sealing adhesive strip ensures fast closure and eliminates the need for tape. The white outer surface provides a clean appearance suitable for business correspondence and clear labeling. The flexible padded envelope adapts to irregularly shaped contents while maintaining a compact profile for handling and storage.

Suitable for

• Small electronics and accessories (chargers, cables, earphones)
• Printed materials and documents that require light protection
• Cosmetics, small glass or plastic containers
• Textile accessories and small clothing items
• Replacement parts and lightweight components

Key specifications

• Internal dimensions: 300 × 445 mm (approx.)
• External dimensions: 320 × 455 mm (approx.)
• Color: white outer surface
• Inner lining: bubble film padding for cushioning
• Closure: self-adhesive strip for secure sealing
• Quantity: pack of 10 mailers
• Form factor: padded envelope / bubble mailer

How to use

Insert the item into the mailer so it sits flat and is protected by the internal bubbles on all sides. Remove the protective strip from the self-adhesive closure and press firmly along the seam to seal the envelope. For added security, reinforce the closure with tape if shipping heavier or irregular items. Address and label the outer surface clearly; avoid writing directly over the sealing area to maintain adhesive integrity.

Usage recommendations

For fragile items, wrap the product in an additional layer (paper or foam) before placing it in the padded mailer. Choose the mailer size that allows minimal movement of the item inside to reduce impact during transit. Store unused mailers flat in a dry environment away from direct sunlight to preserve adhesive performance and bubble integrity.