Quality galvanized medium metal finish with 3 tooth locking design is perfect for creating a tighter finish on those curved and difficult upholstery areas Designed for upholstery applications to fasten fabric to the frames of furniture chairs or sofas that have curved, straight or irregular shapes commonly used to finish edges on curved arms, wingback or arched portion of chairs Measures 100ft long of flexible tack strip perfect for several upholstery projects BayTrim is a certified green business BayTrim Flex Grip metal tack strip is used to upholster/fasten fabric to a piece of furniture that has curves where a straight tack strip will not work. It is most commonly used on curved arms, outside wings, and arched backs. The three tooth pattern allows for extra grip and a tight fit. (No returns)