The Meteor Piston company has been making pistons for small two cycle engines since 1952. These pistons are a high quality replacement option for your professional chainsaw. Each piston assembly include a piston, rings, wrist pin and circlips. This piston comes with a high performance Caber F-cast rings. We recommend replacing your cylinder gaskets and using a piston ring clamp set to help when changing a piston. Made in Italy.