Quality Park Redi Seal Security Tinted Business Envelopes, 4 1 8" x 9 1 2", White, 500 Box Nitrile Glove With its incomparable durability Gray Silver Black With its incomparable durability Binding Accessory Cover Style: Opaque Binding Accessory Pack Size: 50 Pack Binding Accessory Type: Presentation Covers Brand Name: GBC Color Family: Black Corner Style: Square Height in Inches: 11 Material of Item: Polypropylene PP Next Day Delivery: Yes Pack Qty: 50 Punch Type: Un punched Series or Collection: GBC Solids Standard Presentation Covers Sheet Dimension: 8 5 Next Day Delivery: Yes Pack Qty: 1 Paper Weight in Pounds: 24 Security Tint: Security Tinted True Color: White Width in Inches: 4 while the unique double flap design prevents these envelopes from sticking together