The Avenger C345K-1 TUV Certified Barrel Clamp with T-Knob in Silver is a silver aluminium accessory with multiple uses. It has a retractable 5/8" spigot and a 1-1/8" receiver as well as a T-Knob locking mechanism and a safety cable. This clamp has a load capacity of 600kg using the 1-1/8" receiver and can support gear weighing up to 40kg on the 5/8" pin. It will mount to any pipe between 1.65 and 2.04" in diameter.