Fasteners are often used to secure toll transponders on windshieldsView larger 3M™ Dual Lock™ Reclosable Fastener TB3561/TB3562 invisibly attaches access doors and panels, signs, display components, and many other frequently opened and closed parts, without special tools. Mushroom-shaped stems interlock to provide five times the closure strength of typical hook and loop fasteners yet easily peel apart for quick access. This trial bag includes a 10ft mated strip of 170/400 stem density, a combination proven successful for a majority of applications.3M Dual Lock Reclosable Fastener Five times stronger in tensile than typical hook-and-loop fastenersDurable enough to be opened and closed 1,000 times before losing 50% of its original strengthMushroom-shaped stems snap in place to ensure fastener is engagedClear acrylic adhesive bonds to metals, glass and high surface energy plasticsTrial bags offer a simplified "go-to" selection of stem density pairings No drilling, screwing, tightening or sewing needed for secure attachmentView larger High Tensile Strength with Long Lasting Durability When two strips of Dual Lock are pressed together, hundreds of mushroom-shaped stems interlock with an audible snap that lets you know the fastener is engaged. Unlike typical hook-and-loop fasteners that can catch or snag while trying to position, the mushroom-shaped heads allow the strips to be repositioned until properly placed. The fasteners are durable enough to be opened and closed 1,000 times before losing strength and are often strong enough to replace mechanical fasteners, including screws, hooks, zippers, and nails in many applications. 3M Dual Lock reclosable fasteners are available in three densities: 170, 250, and 400 stems per square inch (the higher the combined number, the greater the closure strength). The stems, mushroom-shaped heads, and continuous-film backing are constructed of a tough, flexible polypropylene. Reclosable Fasteners are available with or without adhesive. A Simplified “Go-To” Fastener Solution 3M Dual Lock Reclosable Fastener TB3561/TB3562 includes a versatile combination of 170/400 stem density that will work for a majority of applications. The Trial Bag includes a 10ft long mated strip backed with clear acrylic adhesive that bonds to aluminum, stainless steel, glass, acrylic polycarbonate, and ABS. It is recommended for indoor and outdoor use and holds securely in temperatures up to 200°F. For more than a century, 3M has applied innovation and technology to improving our customers’ lives and supporting their business goals. Today the company, from its headquarters in St. Paul, Minnesota, serves industrial and commercial customers and consumers in nearly 200 countries. 3M Industrial Adhesives and Tapes include application-specific products, including Dual Lock, that provide durability, strength, and special characteristics such as temperature resistance and short- and long-term protection. The 3M brand, across thousands of products, represents consistency, superior quality, and value.