GreatNeck 59001 12 Inch Ratcheting Bar, Clamp and Spreader Delivers up to 300 lbs. Off clamping force High strength nylon fiber jaw construction, 2 1/2" depth Quick release screw to convert quickly from Clamp to spreader Push button for quick release and adjustment Spreads 12" Steel shaft for strength, light weight and durability Nylon fiber filled jaws Nylon Fiber Filled Jaws Steel Shaft for Strength, Durability, and Lightness of Weight Pressure Pivoting Jaw Nose