Snailedit

I am looking at set of universal center caps so can anyone tell me the size of lexus IS Fsport center caps are? I know they are 60mm on the out side but not sure the inner tooth size. Here are set I have found but trying to make sure they will fit before I buy.

http://www.ebay.com/itm/60mm-Set-of-...tZnoV5&vxp=mtr