Overall Length: 16"Pipe Capacity: 3-1/2"Nut Capacity: 3-3/4"Max Jaw Opening: 6-1/8"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