TFP Self Seal Security Tinted Window Envelope 4 1 2" x 9 1 2", White, 500 Box Safety ): 148 Width in Inches: 5 x 11 US ): 148 Width in Inches: 72 These Bankers Box X ray storage boxes support the weight of standard film jackets and feature a secure tab lock closure to prevent films from falling out 5 Pack Qty: 500 Security Tint: Security Tinted True Color: White Brand Name: TFP Color Family: White Envelope Closure: Self Seal Envelope Flap Style: Commercial Envelope Number: Nonstandard Envelope Pack Size: 500 Per Pack Envelope Size: 4 1 2" x 9 1 2" Envelope Type: Window Envelope Window Location: Single Right Height in Inches: 4