i would'nt bother with them personally, they'll only last a few times of taking them on and off then they'll all be scratchd and chewed up, there very soft,
i had them on my trackcar,although there very light they don't inspire much confidance when you can only tighten them up to 80lbft,which you'll need a torque wrench for, i even bought a fancy wheel nut socket so it did nt scratch my wheels,
im assuming these are the one's your talking about