LUXPaper #10 Window Envelopes, 4 1/8 x 9 1/2, White, 500/Pack

Size: 4 1/8 x 9 1/2 Color: White Quantity: 500/Pack Use these envelopes for all your mailing needs that require a single face window. Keep these in your home office, or work office, they will absolutely come in handy!