JAM PAPER #10 Business Premium Envelopes, 4 1/8 x 9 1/2, Blue, 25/Pack

Each envelope measures 3 7/8 x 8 7/8 inches in size and features a commercial style flap with a secure gum closure. Size: 3 7/8 x 8 7/8 inches Features a flap with gummed closure and smooth paper finish. Perfect for personal mail, business mailings, greeting cards, announcements, and so much more!