The item that we are selling is a great find. This is a new in the package ring set for the  1974 1975 1976 1977 1978 XL350's. These are the great single cylinder, four-stroke Honda enduros. This is a standard size (STD) ring set.  Correct replacement for Honda part # 13011-356-003. This has the 2 compression rings and the lower 3pc oil control ring, everything to get your piston compression back where it should be.   Get your old bike up and running again. We only sell the best! This is a top-quality aftermarket item.