Send out laser-printed invoices and other documents with this 1,000-pack of 4-3/16 x 9-inch white gummed double-window envelopes for laser forms. Each one is heavily gummed, making it easy to close when moisture is applied. These white envelopes come in a box of 1,000 units. Made from white 24 lb. paper for durability. These envelopes measure 4 3/16"H x 9"L in size. Gummed closure with square flap keeps contents in place. 1000 envelopes per box. Tear-resistant envelope provides extra security.