Quick-fit holding tool snaps on to the existing studs and provides a quick and easy way to hold material while fitting ? no clamps necessary. Quick fit caps hold material in place on the holding tool, especially on a windy day. Quick fit release tool easily installs and The kit contains 50 sockets with points, 25 holding caps and 1 release tool removes the holding tool from the stud. Great for fitting with material and also holding paper or plastic when molding a pattern. Can be used over and over on job after job. Can be used on boat cockpit covers, side curtains, enclosures, console covers, carpet, pickup truck Tonneau covers, etc. The parts can be purchased individually or in a kit.