Lightweight 14 lb Tyvek Catalog Mailers, First Class, #6 1/2, Square Flap, Redi-Strip Adhesive Closure, 6 x 9, White, 100/Box

Quality Park? Survivor? Catalog Mailers are made with durable 14-lb DuPont? Tyvek?, which is strong enough to withstand the most grueling conditions. The material is puncture, tear and moisture resistant?virtually indestructible. Yet, it is still lightweight which can provide a savings on shipping costs. These white mailing envelopes feature an easy Flap-Stik? closure which requires no moisture for a secure seal and a release strip for quick, easy opening. USPS First Class Mail?Lightweight 14 lb Tyvek?. Seam Type: Center; Flap Type: Square; Trade Size: #6 1/2; Security Tinted: No.