Mail forms and contracts with these Staples 9 x 12-inch natural brown envelopes. Give mailings a professional look with these Staples natural brown envelopes. Durable clasps and gummed flaps keep each folder securely closed, while the 24-pound paper weight stands up to the rigors of mail handling. Comes in brown and made of paper. Dimensions: 9"L x 12"H; size #10. Clasp moistenable glue for secured sealing. Envelopes come in boxes of 100