Bubble mailer envelope BSTech C13 170x225 mm, pack of 100

BSTech bubble mailer envelope C13 (170x225 mm), pack of 100, is a padded mailing envelope designed to protect flat items in transit. The envelope combines a durable outer layer with internal air-filled bubble cushioning to absorb shocks and reduce surface damage. Sized for documents, small electronics, books and other flat goods, the mailer is lightweight and intended for postal and courier shipments where protection and low postage cost are both priorities.

Advantages

The BSTech C13 bubble mailer offers impact cushioning and basic moisture resistance while keeping overall package weight low, which helps reduce shipping fees. A self-seal adhesive strip enables quick closure without additional tape, and the paper or polyethylene outer layer provides a printable surface for labeling. The internal bubble lining improves protection compared with plain envelopes and reduces the need for extra packing materials.

Suitable for

• Shipping A4 documents folded or flat, printed materials and brochures
• Sending small electronics such as phone accessories, memory cards, and USB drives
• Mailing thin books, notebooks, photos and artwork with some rigidity
• E‑commerce orders of lightweight, flat items that require light padding

When it may not be suitable

These mailers are not intended for heavy, bulky or fragile items that require rigid boxes and more substantial protection. Very sharp objects, items with corners or heavy weights can puncture or deform the bubble lining and should be placed in a box or additional protective packaging. For high-value electronics or items sensitive to moisture over long transit times, consider using rigid boxes and stronger water-resistant packaging.

Key specifications

• External dimensions: approximately 170 x 225 mm
• Interior cushioning: air bubble lining
• Outer material: paper or polyethylene outer layer
• Closure: self-seal adhesive strip
• Pack quantity: 100 mailers
• Primary use: padded mailing for flat, lightweight items

How to use

Insert the item centred on the bubble side to ensure even cushioning. Remove the protective strip from the adhesive closure and press firmly along the seam to seal. For extra security, apply clear packing tape over the seal or reinforce corners when sending heavier or irregularly shaped items. Write or affix the shipping label on the outer surface; if the outer layer is polyethylene, use permanent ink or a printed label for best adhesion.

What to consider before purchase

• Check item dimensions and weight to ensure a 170 x 225 mm mailer provides adequate fit and protection
• Verify whether a paper or polyethylene outer layer is preferred for printing, water resistance and handling
• Consider postage costs — padded mailers reduce weight versus boxes but may affect dimensional pricing
• For fragile or high-value items, plan additional internal protection or use a rigid box

Usage recommendations

For typical use, place documents or small items flat and centred, seal with the self-adhesive strip, and label clearly. Reinforce the seal with tape for heavier shipments and use a cardboard sleeve or double-box method for fragile or valuable contents to ensure safe delivery.