P/N: EM-2160900 EMPI. Cylinder Shim Set;. 1965 - 1965 Transporter. 1954 - 1979 Beetle. 1954 - 1971 Bus, Camp, Transport. All parts are priced individually unless identified as a set or kit. These parts are still sold individually and you'll need to select the appropriate quantity if you plan to replace more than one of this item.
They work just fine for their intended purpose, just plan on +/- 0.005". They're made of stamped steel. I've bought two packs of these Empi 0.090" shims and measurements between the two packs varied from 0.085"-0.092", good enough to get you in the ballpark but too unpredictable for precision if you're running a tight deck already. If it really matters, get better quality or custom cut shims. These work on a budget or in a pinch though.