If you are shipping smaller products — books, jewellery or mini cosmetics — to your customers, this 10-piece bubble mailer pack fits the dimensions of compact parcels perfectly. The B/12, 135×225 mm outer size is one of the smallest postal formats available, which eliminates unnecessary empty space and packaging waste.
What does the 10-piece pack contain?
The pack contains 10 bubble mailers, each measuring 135×225 mm on the outside. The net weight of one envelope is approximately 15 grams; the total gross weight of the pack is 0.165 kg. The envelopes can be stored flat, stacked on top of each other, and they fit neatly in a drawer or under the packing desk.
Material and bubble lining
The outer layer of the envelope is a kraft-style, recycled paper with a natural, neutral tone. The inner side is lined with a fine bubble layer, which absorbs impacts and dampens vibrations during transport. This paper-based construction offers an environmentally friendly alternative to fully plastic mailers, while providing nearly the same level of protection.
Size and use
The 135×225 mm inner format is specifically designed for small items: a pocket book, a slim volume of poetry, a jewellery box, a mini essential oil bottle, a lip-care set, a card game or a label folder for a folded cotton T-shirt all fit comfortably inside. For webshop owners who frequently dispatch jewellery, cosmetic samples or small accessories, this size usually matches the product portfolio precisely.
Closure system and opening
An adhesive strip runs along the upper edge of the envelope, protected by a release liner until use. Once the liner is removed, the flap folds down and the adhesive secures the closure permanently. The closure is single-use: your customer can easily open it with a tear, but the envelope cannot then be resealed — which serves as a tangible sign that the contents have not been tampered with.
Storage and durability
The envelopes are best stored in a dry, cool place, laid flat. Avoid direct moisture and strong sunlight, as these can weaken the paper structure and the adhesive over time. With appropriate storage, the envelopes retain their full protective capacity for many months.