Valve covers back on and some of the neccessary tools, closing rocker holding tool, micrometer, measuring pin for the closing shims, feeler gauges and of course, just a small sample of the hundreds of opening and closing shims on stock. The 8mm inside diameter shims can also be used for later 2 valve belt driven Ducatis, however the 4 valve engines, such as the 851 need 7mm inside diameter shims.