C-Clamp, Jaw Pad Type Flat, Includes Swivel Pad Yes, Jaw Opening - Maximum 6 in, Jaw Opening - Minimum 1 in, Throat Depth 2 1/2 in, Clamping Force 11,250 lb, Body Material Forged Steel, Body Color Gray, Spindle Finish Black Oxide, Spindle Material Steel, Handle Type Square, High Visibility No, Number of Anvils 1, Number of Spindles 1, Release Mechanism Standard Thread, Body Finish Powder Coated, Throat Shape Square This product contains a chemical that is regulated under California Proposition 65. Warning: This product contains a chemical known to the State of California to cause cancer. Warning: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm. - Nickel (Metallic)