No. 10 window envelopes offer a contemporary style, side seam, fully gummed flaps and sturdy, 24 lb. white wove paper. Envelopes open along the top of the long end.

 Single Window - #10 - 9 1/2" Width x 4 1/8" Length - 24 lb - 500 / Box - White

 Box of 500 envelopes