4.125 in x 9.5 in World Wide #10 Envelopes, pkg of 25

Designed #10 Envelopes make your mailings stand-out! Square flap, 25/box, 2-sided design. 4-1/8"x9 1/2", holds 8 1/2"x11” sheets (3-fold).

4 1/8” x 9 1/2”

28 lb. stock

Professionally designed exclusive square flap

2-sided design

Laser and inkjet compatible