3M™ Dual Lock™ Reclosable Fastener SJ3219 is a black, polypropylene reclosable fastener with a 25.4mm x 30.5 mm, slide-in, rectangular base and has a stem density of 250 stems per square inch.
3M™ Dual Lock™ Reclosable Fastener Slide-In Piece Parts attach without the use of pressure sensitive adhesive, and come with a variety of bases that can be slid into holes of precise dimension. They are easy to install and require no special equipment or skills.