Office Depot(R) Brand #10 Right Hand Security Window Envelopes

Ideal for use with HCFA 1500 Medicare Claim Forms and other standard medical and dental insurance forms.Standard #10 envelopes feature a bottom right hand window.Window size measures 1 1/8in. x 4 1/2in. and is placed 4 1/8in. left.1/2in. bottom.Meets USPS regulations for OCR scanning.Constructed from sturdy 24-lb white wove paper.