The Leofoto LR-50 is constructed from solid aircraft grade aluminum and hard anodized for the maximum strength and durability. This clamp features a lever release for quick and easy attach/detach and adjustments. 

Leofoto LR-50:
Length (clamp only): 81mm/ 3.26in
Width: 50mm/ 1.96in
Height: 22mm0.86in
Mounting hole: 3/8"
Weight: 131g/ 0.28lb