Avenger C150 Swivelling C-ClampAvenger C150 Swivelling C Clamp This clamp works on diameters from 28mm to 78mm with a 28mm socket and 16mm receiver. It also features a cable lock that can hold a payload up to 75kg. This accessory is made from gravity cast aluminium making it extremely durable and robust and perfect for holding big lights. The swivelling locking system allows easy fixing of the fixture. Works on diameters from 28mm to 78mm TUV certified Load capacity 10kg on 16mm