Overall Length: 22"Pipe Capacity: 4-1/2"Nut Capacity: 4-3/4"Max Jaw Opening: 8-1/4"Chrome Vanadium Electric Steel, Forged And Oil HardenedSelf Gripping Angular Jaw, Non-Slip On Any Shape Including Pipes And NutsFast Fine Adjustments Directly On Workpiece By Pushing A ButtonPinch Guard Prevents Operators' Fingers Being PinchedRubber Coated Non-Slip Hand For Comfort And Reduces Fatigue