Handy little coin envelopes are ideal for small parts, samples, seeds, enclosures, loose coins and payroll applications. Flaps feature deep gumming for a secure seal. No. 6 coin envelopes are made of sturdy, 28 lb. Kraft stock. #6 (3.38″ x 6″) – 28lb – Gummed – Kraft – 500 / Box – Brown Kraft