The 3M Dual Lock Reclosable Fastener SJ3560 is made from transparent polypropylene. The smooth backside features a clear acrylic adhesive, while the top side has 40 mushroom heads per cm², and in the closed state, the flexible fastener is 5.8 mm thick. Our flexible fastener retains at least 50% of its original tensile strength after 1,000 open-close cycles. In the industry, the 3M Dual Lock fastener system has been successfully used by professionals for years. This self-adhesive high-tech system can be used for temporary fastening of various items such as power strips, tools, picture frames, and more. The single-component fastener can be opened and closed up to one time.