The item that we have here for sale is 4 pcs (enough for 1 engine) of the helpful Valve Guide Seal / Cap for the  now vintage CB450 and CL450 Scramblers made in 1968 1969 1970 1971 1972 1973 1974. Top quality aftermarket item. This is a great addition to the engine gasket set , or oil seal kit that we also stock..very helpful in your engine rebuilds. We only sell the best!  This is an essential item if you  riding,  restoring, or racing one of these cool old bikes.   Good Luck! We look forward to doing business with you.