10.5 x 15.25" (#5) Poly Bubble Mailers (Carton of 100) 100 mailers in a carton Each mailer is made from 100% polyethylene and is completely recyclable Combines the strength and versatility of a courier envelope with the cushioning of a bubble-lined mailer Bubble mailers have a poly outer surface, and a convenient self-sealing closure Inside usable space of 10.25" x 15"