3M Dual Lock Reclosable Fastener SJ3560 has a clear acrylic adhesive on the back of a clear polypropylene reclosable fastener with 40 stems / cm and 5.8 mm engaged thickness. Our reclosable fastener has a closure life of 1000 times before losing 50% of its original tensile strength. -Clear fastener with mushroom shaped stems backed with a clear, acrylic pressure sensitive adhesive -Type 250 mates to Type 170, 250 or 400 -Five times the tensile strength of typical hook-and-loop fasteners -Opens and closes 1000 times before losing 50% of its original tensile strength -Stems snap in place to ensure fastener is engaged -Designed to bond to metals, glass and high surface energy plastics