Oh, one other thing, get the oil based. They make a latex based now, that ive not tried, but I assume it will do like latex paint and start to orange pill over time. That is when the bones start to leech out oil. The same oils that make the bones look yellow after a while. It wont bother the oil based. I made the mistake of using paint one time, with out primer, and the skull orang pilled after about 6 years and made a big mess.