Bovidix 9890424 24-Inch Quick Lever Bar Clamp and 32-Inch Spreader Aluminum jaws clamp objects together in one easy motion of a lever Amount of pressure is adjusted by the screw wheel at the base of the lever Clamp converts into a spreader by moving the front jaw to the opposite end Clamp capacity - 24", Spreader capacity - 32" Materials: Aluminum Jaws, Steel bar