Metal nano clamp with opening diameters: 21 mm to 45 mm and with 1/4" and 3/8" thread.
Ideally to be used with a spigot 16mm adapter to attach small lights to pipes, light stands central column ..et.
Clamp dimensions: 6.5L x 6.5H x 2.3W cm
Approx. weight: 100g
Note: spigot adapter not included. Available here. 
