The item that we are selling is a great find!  This is a new in the package Piston Ring set (1 set for each piston) for the  1975 1976  Honda CB500T  motorcycle.   These were the  twin cylinder, DOHC, four-stroke Hondas.  This is a standard size (STD) ring set.  This has the 2 compression the lower oil control rings 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. #13011-375-005.  Good stuff if you are riding or restoring or AHRMA racing one of these cool bikes.  That is it!