Window Envelopes,No 10.,Side Seam,4-1/8"x9-1/2" ,500/BX,White
Business Source Economical No. 10 Window Envelope - Single Window - #10 - 9 1/2" Width x 4 1/8" Length - 24 lb - 500 / Box - White
Single Window - #10 - 9 1/2" Width x 4 1/8" Length - 24 lb - 500 / Box - White
Ideal for everyday mailing
Features window with film cover and side seam