Articulated Arm: The kit features a durable 6-inch articulated arm equipped with 1/4' 20 screws Load Capacity: The arm can support up to 4kg (8.8 lbs), making it robust enough to hold your equipment securely RL-SUPERCLAMP: The kit also includes the RL-SUPERCLAMP, a compact yet sturdy clamp that can grip a tube with a diameter ranging from 0.5' to 1.37' (13-35mm)