Here is a very helpful item: This is a set of 8 new Valve Guide Seals (Viton) for the Honda CB650 Four motorcycles (1979-1982). This is enough for 1 engine. Important part of a top -end rebuild. We also have other items in our ebay store for these bikes too! Top quality aftermarket item. Part #12209-333-005. That is it! Good Luck! Thank you!