piston ring Polini 58x1mm for Vespa 125 Primavera 2T, Primavera ET3 2T 206.0375

1mm thick piston ring for the Polini Evolution2 135cc racing cylinder kit for 125cc Vespa ETS, PK, Primavera 2-stroke, 2-stroke Primavera ET3 2-stroke maxi-scooters. Delivery includes 1 item. 1 piston ring