The Mead #10 GUMMED SECURITY ENVELOPES are 4 1/8″ x 9 1/2″ white envelopes designed for business use. These envelopes feature a printed lining, gummed flap, and are made of 20 lb paper for added security. With a quantity of 40 envelopes per box, these #10 size envelopes are ideal for various shipping and mailing needs. Made in the United States, these envelopes offer a reliable and secure option for sending important documents and items. These are from a smoker’s home so they do smell like cigarettes some. I have several boxes available.