Envelope-Gusset 9X12X1" Expansion, Natural Kraft, 250/Box

Supremex extra-large, open-end expansion envelopes are specially designed to expand up to 1" on all four sides to accommodate bulky mailings. Center seam design provides extra strength for secure deliveries. 32 lb. natural kraft stock. Contains a minimum of 50% post-consumer recycled content. FSC® Certified.