"The RAM Mounts Tough-Claw Trolling Motor Stabilizer gives you near-infinite adjustability for the perfect angle. Featuring a C-size RAM double-socket arm, 2.5"" round plate, C-size 1.5"" RAM rubber ball, the small Tough-Claw base quickly clamps to round, square, and odd-shaped rails and bars between .625"" and 1.14"" dia. Adjustment points on each end of the double-socket arm gives you the ability to change the angle to ensure perfect conformity. This RAM Mounts kit includes rubber pads for a secure grip that protects surfaces from damage. Powder-coated, marine-grade aluminum and high-strength composite construction deliver exceptional durability in marine environments. Mfrs. lifetime warranty. Double-socket arm adjusts on both ends for maximum adjustability Durable powder-coated aluminum and composite construction Tough-Claw base connects quickly and easily Fits round, square, and odd-shaped rails Rubber pads provide a secure grip"