I bought a Highland Park C8 Cabbing Machine, it takes 8" wheels. I would like to know which one do I pick in the drop down menu.

I'm not sure what you will need for that machine as we do not carry any highland park machines. These are polishing heads though, not wheels. If you need one of these you will need to find out the size of your arbor and the threading. If you're looking for actual wheels, you will want to look under 11027_CFG and 30306_CFG for wheels that should work on that machine.