Columbian(R) Right-Hand Window Claim Form Envelopes

Ideal for use with HCFA 1500 Medicare Claim Forms and other standard medical and dental insurance forms. Meets USPS regulations for OCR scanning. (Window size is 1 1/8in. x 4 1/2in., placed 4 1/8in. left, 1/2in. bottom). 24 lb. white wove. Sold 500 per box.