3M Dual Lock Reclosable Fastener: SJ3460, SJ3560, SJ3440, SJ3540, SJ3550
3M™ Dual Lock™ Reclosable Fasteners consist of continuous strips of plastic backing, with plastic mushroom shaped stems protruding up from the backing strip. When two pieces of Dual Lock fasteners are pressed together, the mushroom heads interlock with one another, with an audible snap. To open, simply pull apart. This provides fast, secure reclosable fastening … Continued