The RAP-400 RAM Mount Universal Tough-Claw Quick Release Clamp Base with 1.5 inch ball is designed to accommodate round and square bars and rails from from 0.625" to 1.5" thick. Ideal for mounting tablets, action cameras, smartphones, rod holders for rod storage and much more in a wide variety of applications. Perfectly suited for mounting on the yoke of an aircraft, handlebars and seat posts of bicycles, kayak rails, roll bars and much more, the RAM Tough-Claw is compatible with other 1.5 inch C-Ball RAM components.