Heavyweight 18 Lb Tyvek Open End Expansion Mailers, #13 1/2, Square Flap, Redi-strip Adhesive Closure, 10 X 13, White, 100/ct Georgia Pacific® Professional Perforated sheets allow clean

Perforated sheets allow clean

Folds flat for compact storage

It's a light and healthy way to add flavor to your foods without adding calories or preservatives

non-abrasive paper is safe to use on most surfaces

Ideal for offices

Heavyweight 18 Lb Tyvek Open End Expansion Mailers, #13 1/2, Square Flap, Redi-strip Adhesive Closure, 10 X 13, White, 100/ct Georgia Pacific® Professional Perforated sheets allow cleanThese Survivor envelopes expand to provide lightweight, inexpensive shipping for bulky items. Expandable envelopes are made of puncture, tear and moisture resistant DuPont Tyvek material. Envelopes made with Tyvek are half the weight of heavy duty paper envelopes, so you save on postage with each mailing. Our tough expandable mailers resist overstuffing, bad weather and rough handling to deliver your contents intact. With easy to use Quality Park Redi