Pipe Capacity: 2-1/2"Material: Cast Iron Housing, Forged Steel JawOffset Jaw Is Ideal For Pipe Work Close To A Wall, In Tight Quarters Or In Closely-Spaced Parallel LinesI-Beam Handle With Full Floating Forged Hook JawFeatures Self-Cleaning ThreadsFeatures An Adjustable Nut That Easily Opens And Closes The JawsGraduations On Hook Jaw Show Approximated Sizes Of The Opening For Different Pipe SizesReplaceable Hook And Heel Jaws