This is a NEW Wiseco piston kit for a 1977-81 Suzuki (1977-80 RM250 & 1977-81 PE250).  This includes the piston, pistons rings, and clips.  It is 080 oversized (69.00mm).  The piston looks and rings both look great.  Please see photos for exact condition.  Came out of an old motorcycle shop that was closing after 45 years of business.  Great part for your vintage Yamaha.  Please email if you have any questions.