Staples Laser Forms Gummed Double Window Business Envelopes, 4 1 5" x 9", Wove White, 500 Box Safety Give your office filing system Nahanco Traditional plastic top Give your office filing system an overhaul with these A Z pressboard guides Focus your time on growing your business and staying ahead the HP LaserJet Pro M404dn is designed to lighten your workload and maximize productivity Made out of 24 pound wove paper that makes them extra tough and durable Brand Name: Staples Color Family: White Envelope Closure: Gummed Envelope Flap Style: Square Envelope Material: Paper Envelope Pack Size: 500 Per Pack Envelope Paper Finish: Wove Envelope Size: Other Envelope Type: Double Window Envelope Window Location: Double Left Height in Inches: 4