These peel-and-seal extendable envelope mailers are designed to provide added protection for documents, booklets and small e-commerce orders during posting. The expandable crease lines allow the envelope to fold and extend easily, helping it hold thicker or multiple contents when needed. Each envelope also features an easy-tear opening strip, making it simple for the recipient to open the parcel neatly and with ease.
📐 M3 Size: 275 x 352 mm (10.8” x 13.9”) ; Expanded Size: 205 x 282 x 70mm (8.1” x 11.1” x 2.8”)
✨ Sturdy corrugated cardboard construction helps protect items from bending and damage in transit
📦 Crease lines allow easy folding and extending to hold more contents
🔒 Peel-and-seal closure for fast, secure and hassle-free packing
✂️ Easy-tear opening strip for convenient opening
♻️ Recyclable material for a more environmental-friendly packaging choice