Heavyweight 18 lb Tyvek Open End Expansion Mailers, First Class, #15, Square Flap, Redi-Strip Closure, 10 x 15, White, 100/CT

Expandable mailer made with DuPont™ Tyvek® material 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 Redi-Strip® closure provides a secure, peel-and-press seal. Clean, crisp look makes a professional impression. DuPont® Tyvek® Booklet Expansion Mailer 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. White.