This is an all included kit. All the mounting hardware comes with the clip: track sliding nut and well nut. It can be easily installed directly on the watercraft or on a mounting track. This paddle clip works with all Pelican paddles and/or paddle with a diameter around 1.14 In. (2.9 cm). It measures 1.37 x 5.8 x 1.33 inches (3.5 x 14.8 x 3.4 cm). The design of the clip is made that when you install 2 clips on each side of the boat, they can be used like paddle holders. The indentation in the middle of the clip is made expressly to fit a paddle in it. This clip can be also used to hold fishing nets and/or store your paddles in your garage.