Quantity: 2Kit Contains: 2 - ZipWall Heavy Duty Zippers And 1 Zipwall Zipper KnifeZipper Size: 3" Width X 7' LengthIdeal For High Traffic Job Sites Or Where Temperatures Go Below FreezingZipWall Zipper Knife Cuts Out Strip Of Sheeting To Prevent Teeth From JammingCreate A Doorway Anywhere Needed By Simply Adhering Zipper To Any Suspended Poly Sheeting Barrier WallMeets Strict ANSI Certification And Is Ideal For The New EPA RRP Lead Dust Law