this is one of the coolest ideas in rim design i've seen... maybe ever. you pick the color of the rim and then pick the color of the insert. you can then remove the insert and replace them with different colored ones, or just paint the ones u have. i want them SO bad...
check out this site for details
http://www.streetperformance.com/riproductdisplaysp.php?sku=4559

check out this site for details
http://www.streetperformance.com/riproductdisplaysp.php?sku=4559