The "R" Series of the CORD-LOX cord control system features unique patent pending permanent rivet attachment design. To use, simply wrap the CORD-LOX end with the holes around the cord, line up the holes, and insert the supplied rivet through the openings. Press the male and female halves firmly to lock into place. Next, coil or bundle the cord, wrap the CORD-LOX around it, and attach the hook side to the loop side. The CORD-LOX will now keep your cords securely fastened and the rivet will make sure the CORD-LOX stays on the cord. Packs of 10.