Olympic Bar Collars (Pair) Olympic 2" Collars for different bars, plates or chains Choice of chrome training collars for dumbbell handles, spring collars, spin lock collars 2.5 Kgs, engineered plastic muscle clamps, zinc plated weight lifting chain collars, or ball bearing plastic hub quicklee collars Select from one of the options at the top. Ships to all 50 States, APO, FPO, and P.O. Box