4pcs 87mm piston ring set designed for use with H22 H22A H22A4 VTEC engines.This set includes four complete piston ring assemblies, each consisting of , middle, and oil control rings.The rings are engineered to provide effective cylinder sealing, reduce oil consumption, and maintain compression.manufactured to match specifications for fit and performance.Suitable for engine rebuilds and performance tuning applications. Disclaimer: This is a compatible replacement part.Any brand or model mentioned is for compatibility demonstration, not endorsement.