Bubble Mailer of DuPont Tyvek, #13 1/2, Square Flap, Redi-Strip Adhesive Closure, 10 x 13, White, 25/Box Air cushion liner. Redi-Strip® adhesive. Sensitive contents should be bound by heavy-duty adhesive, so peel back the attachment on the self-sealing flaps for a secure hold. With a durable, puncture-resistant and waterproof shield, the envelopes can cover most offices' daily needs. Lightweight design saves on costs at the post office.
