Quality Park Survivor Tyvek Self Seal Document Envelope 10" x 13", White, 100 Box Flashlight while the assorted tab positions Dynamic linking connects multiple while the assorted tab positions make it quick and easy to browse BIC Intensity permanent pens contain smooth ink that will not bleed through paper Brand Name: Quality Park Color Family: White Envelope Closure: Self Seal Envelope Flap Style: Square Envelope Material: Tyvek Envelope Number: Nonstandard Envelope Pack Size: 100 Per Pack Envelope Paper Finish: Smooth Envelope Size: 10" x 13" Envelope Type: Document Envelope Window Location: None Height in Inches: 13 Pack Qty: 100 Paper Weight in Pounds: 60 Security Tint: Untinted Series or Collection: Survivor True Color: White Width in Inches: 10 These Quality Park Survivor self adhesive Flap Stik Tyvek mailer envelopes stay closed during transit and special panels reveal the word "Opened" in bold red letters if forced open