This is a very helpful item if you are working on your now rare KZ1000 Kawasaki motorcycle.   This is a new in the package standard size (STD) Piston Ring Set  (So enough complete ring set for All 4 Pistons!  or for you to re-ring 1 engine) for the  1981 1982 1983 1984 1985 1986 KZ1000's.    This is a standard size (STD)  69.5mm ring set. We stock the 70mm rings for other KZ1000 years also on our website.  This has the 2 compression rings and the lower 3pc oil control rings for all 4 pistons, everything to get your pistons/ engine running nicely again.   We only sell the best! This is a top-quality aftermarket item shipped new in the package.  Correct replacement for part # 13008-5035.  Good stuff if you are riding or restoring or AHRMA racing one of these cool bikes.  That is it! Good Luck!  Thank you!