Chauvet DJ CLP-25N 50mm Coupling Clamp

This aluminum gravity casting black Barrel Clamp works on diameters from 42mm to 52mm. It holds a payload of 40kg on a 16mm attachment and 600kg on a 28mm attachment. The clamp is TUV SUD certified for maximum security for the user. It features 3 attachments: 5/8” (16 mm) bushing, 1” 1/8 (28 mm) bushing, and a 5/8” (16 mm) spigot. This clamp is extremely strong, featuring a knob locking mechanism for easy operation, and it includes a safety cable.
The C345BK supplied is black in colour

Avenger C4461-1 Clamp Eye Coupler 28mm Spigot 300kg Payload 42-52mm Wide TUV SUD Certified.

Avenger C210 Clamp Baby Pipe w/ Tommy Bar 10mm to 55mm Range 100Kg Payload

Works on diameters from 10mm to 55mm. It has a 5/8″ mounting stud and a load capacity of 220.46 lb (100 kg). Made of aluminum.