QUAR4440 Tyvek Booklet Expansion Mailer, 1st Class, 10 x 13 x 2, White, 18lb, 100/Carton By QUALITY PARK PRODUCTS

Expandable Tyvek® mailer delivers the best possible protection at a shipping-cost-saving weight. Inserting and removing contents is easy because of its horizontal, open side orientation. Self-adhesive Flap-Stik® closure provides a secure, peel-and-press seal. Clean, crisp look makes a professional impression. Envelope Size: 10 x 13; Envelope/Mailer Type: Expansion Mailer; Closure: Self-Adhesive.