Our pressure seal options provide a fully integrated solution for all types of business mailing. Ideal for cost reduction and increasing productivity by reducing processing time. This pressure seal form is made of the highest paper grade with a secure cohesive. This 8-1/2" x 11" form features a C fold and is a duplex multi purpose blank sheet. This style has double poly windows so that desired information can be seen without having to open the envelope. It is heat resistant and smear proof for superior legibility and performance. Sold in boxes of 1000.