GearWrench 3793 Large Hose Pinch-Off Pliers, 2-1/2" O.D. Capacity Ideal for Use on Radiator Hoses, Heater Hoses, Water, Air, Vacuum and Fuel Lines Capacity 2-1/2" Outside Diameter Extra Long Cushioned Hand Grips for Comfort and Control Clamping Mechanism Locks Automatically - No Screws Or Levers to Set Or Adjust Black Oxide Coated to Resist Rust and Corrosion