Advocates of the existence of ante res universals, and particularly those who deny that these universals are constituents of particulars, tend to suppose that universals abound—that there is not only such a universal as whiteness but such a universal as “being both white and round and either shiny or not made of silver”. Advocates of other theories of universals are almost always less liberal in the range of universals whose existence they will allow. The advocate of in rebus universals is unlikely to grant the existence of “being both white and round and either shiny or not made of silver”, even in the case in which there is an object that is both white and round and either shiny or not made of silver (such as a non-shiny white plastic ball).