Lightweight and economical, these GoSecure Bubble Lined Envelopes are designed to be impact resistant. With a bubble lined interior and an exterior made from 75gsm MG grade paper, these envelopes are ideal for protecting delicate or fragile items in transit. Featuring a sender address box and a secure peel and seal closure, these size 3 White envelopes measure 150x215mm and come in a pack of 100.Bubble lined interiorDurable 75gsm MG grade paperSecure peel and seal closureSize 3: 150x215mm (internal) 170x225mm (external)Colour: WhitePack of 100