These Crescent Locking C-Clamps are faster and easier to use than standard clamps. They have a nickel plated finish that resists rust and corrosion for increased durability. The red plastic dipped release lever provides improved comfort and Crescent brand identity. An aggressive grip pattern has been added to the tightening knurls. The handle also features a hex key receiving hole for increased torque and convenience.This Crescent Locking C-Clamp has the following specification: Length: 150mm (6in)Capacity: 54mm (1.1/8in)