This is a new in the package Piston Ring set x 2 sets (1 set for each piston - enough to do 1 engine) for the  1974 1975 1976 1977 Honda CB360 CL360  (Scrambler) and CJ360 motorcycles.  So with this purchase you get enough rings to do 1 complete engine. These are standard size (STD) ring sets.   This has the 2 compression rings and the lower oil control ring for both pistons, everything to get your pistons/ engine running nicely again.   Get your old bike up and running again. We only sell the best! This is a top-quality aftermarket item shipped new in the package. Good stuff if you are riding or restoring or AHRMA racing these cool bikes.