Quality Park Redi-Seal Single Window Envelope
Quality Park QUA21318 – No. 10 Redi-Seal Window Envelopes require no moisture. Raise the lower flap and press. Unique double-flap design keeps gum from sticking until mailing. 1-1/8″ x 4-1/2″ window is positioned 7/8″ from left and 1/2″ from bottom. Envelopes are made from 24 lb.