StarSide FlyWheel Clutch Hub Rotor Sprockets Spanner Wrench Holder Adjustable Tool Material: High quality iron Length: 30cm/11.8 inch.Head opening width: 1.2-15cm/0.47-5.9 inch Compatible: Fit for the front and rear transmission gear of motorcycle and flywheel High quality of iron can wrench very hard things.Adjustable Screw will bring you more Please be sure to keep it dry