Removable Round Rail Mount Clamps - Injection Molded Nylon/EDPM/Stainless SteelRemovable Round Rail Mount Clamps are great for retrofitting your existing rails to mount a wide variety of items, including fillet tables, solar panels, GPS, cell phone holders, cup holders, binocular racks, etc. Clamps fit 3/4", 1", and 1-1/4" tubing. Includes shims, thumb screws, and all mounting hardware. Constructed of UV-stabilized injection-molded nylon with stainless hardware.