Features: This is a piston stop for service that requires to hold the crankshaft in place. It can be used for clutch service or flywheel nut removal or servicing weed eaters and leaf blowers. Just remove the spark plug and screw this tool in it's place and lightly snug it down. The end is machined full radius to prevent damage to the top of the piston, and it was made of premium quality material for a long service life. The clutch tool set is very easy to use and very handy to have around if you do your own saw or other 2 cycle work. Specification: Condition: 100% Brand New Color: Orange + Black Package weight: 300g / 10.58oz Package size: 17.5*11*3cm / 6.89*4.33*1.18in Package Included: 1 * Clutch Removal Tool Set