3M(TM) Fastener SJ3507 Loop Thin is white in color and covered with thousands of soft, pliable loops, providing for a limited number of openings and closinigs (cycles). It has an acrylic pressure sensitive adhesive on the backside. This product provides a solution for applications requiring a limited number of openings and closings. The thin intermeshing hook and loop are shorter for a 75% lower profile than the standard 3M(TM) Hook and Loop Fasteners.