3M™ Dual Lock™ Reclosable Fastening Systems are positive-locking, blind fasteners designed for attaching automotive trim components. The products feature mushroom-shaped polyolefin on a continuous polyolefin backing. 3M Dual Lock fasteners overcome the often difficult alignment and installation problems of screws and hidden fastener. They offer simple installation with no additional tools required. The fastener engaging area can be easily detached when repairs or maintenance are necessary, and engaged together later again.