Envelopes are designed for forms and invoices with address information on the right. Special right-hand, Poly-Klear window position measures 4-1/2" wide x 1-1/8" high and is positioned 4-1/8" from the left and 1/2" from the bottom. Design features interior security tint for added privacy, a gummed seal, executive-style diagonal seam and V-flap construction. Envelopes are made from 24 lb. white wove paper.