Winnable® Slidelock® Zipper Closure Poly Envelope. Letter size. 1.25" expansion. Easy to use slide zipper closure. Extra pocket on the front. Top loading. 13" x 10" Assorted Colours. Polypropylene. Zippered closure. Clear front pocket. Expanding 1-1/4 in. gusset. Letter size. Assorted colours (no specific colour can be selected). General Information Manufacturer:Winnable Enterprise Co. Ltd.Manufacturer Part Number:ENZ-11-ADManufacturer Website Address:http://www.winnable.comBrand Name:WinnableProduct Line:SlidelockProduct Name:SlideLock" EnvelopeMarketing Information:Polypropylene. Zippered closure. Clear front pocket. Expanding 1-1/4 in. gusset. Letter size. Assorted colours (no specific colour can be selected).Packaged Quantity:1 EachProduct Type:Envelope Product Information Mailer/Envelope Classification:LetterClosure Type:ZipperedWindow Location:FrontFeatures:Expandable Physical Characteristics Product Material:Polypropylene Product Numbers: ENZ-11-AD 065479098255 107367 WNNENZ-11-AD WNNENZ11AD