A pair of aluminum barbell collars in the color of your choice made with 6061 billet aircraft grade aluminum, these collars are made to take a beating. OSO barbell collars are proudly made in the USA!

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A pair of aluminum barbell collars in the color of your choice made with 6061 billet aircraft grade aluminum, these collars are made to take a beating. OSO barbell collars are proudly made in the USA!

  • Sold in Pairs
  • Made in the USA
  • Designed to be used on 50mm Olympic Bar Sleeves
  • 6061 Billet Aircraft Grade Aluminum
  • Rubberized interior lining to protect bar with locking clamp mechanism for secure hold

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