If you are talking about the rim center caps then they are held in by plastic fingers on the cap. The cap just pops into the rim with firm fist pressure and can be removed with a very small flat blade screwdriver without having to remove the rim. They are held in pretty tight and won't just fall out. Someone helped it/them out of the rim. They shouldn't cost more than $5 each.
2006 Inferno Red SRT8 with groups I, II, Sunroof, K&N drop-in filter, Auto-dim mirror, Jet-180 T-stat, Predator, 300 SRT struts/springs, Chally SRT wheels.
Born 6-21-06, Home 4-26-10. 1/4 mile - 12.989 @ 108.78 in street trim. Traded 10-19-2012.
2006 Inferno Red R/T with R&T Born 8-12-05, Home 8-25-05, Sold 8-9-10.