The RAM Tough-Claw™ Small Clamp Base (RAP-B-400U) features tool-free installation and removal on round, square, and irregular-shaped rails and bars. The Tough-Claw™ tightens with a turn of the knob, securing to rails with an outer diameter from 0.625"–1.5" and to flat surfaces with a thickness from 0"–1.14". Integrated rubber pads inside the clamp help protect mounting surfaces, minimize scuffs and marring, and enhance grip for added stability. This base is ideal for mounting phones, action cameras, small tablets, and rod holders for rod storage. Popular mounting locations include aircraft yokes, bicycle handlebars and seat posts, kayak rails, and roll bars.