Item Number 80920 Use this "Stars & Stripes" window envelope with a Peel-and-Close flap to easily mail any tax return or report. A blue interior tint adds security while the cellophane window allows the taxpayer name and address to clearly show through. Add a professional touch by imprinting your return address on the back flap.This 9 1/2" x 11 1/2" envelope is constructed of 28lb paper. Pricing is for 100 Envelopes Shipping is Free Ships direct from the plant Pricing is for 100 envelopes