OSO Pro Barbell Collars

  • Sold in Pairs
  • Made in the USA
  • Designed to be used on 50mm Olympic Bar Sleeves
  • 6061 Billet Aircraft Grade Aluminum
  • Rubber interior lining to protect bar
  • Nylon locking clamp mechanism for secure hold
  • Color Options: Blue, Green, Orange, Pink, Purple, Red, Gold, and Steel Gray.

Branding is available upon request.

OSO 2 Year Warranty:

 OSO Barbell will warranty this product from defects in material, functionality and workmanship for a period of 2 years from the date of purchase. 

 OSO Care:

These Collars are designed to take a lot of abuse when clamped on a barbell. Aluminum will bend, therefore when they are not on a bar, avoid throwing, kicking, stepping on or any other means of abuse as this will void your warranty.


Here are some best practices:

  •   Double Click - Open the collar until it clicks for a second time - then it will stay open to slide easily on and off
  •   Find a good place to store them. Consider an alternative to the bucket as people tend to "drop" and "throw" them in and could possible damage them.
  •   If the rubber gets sticky - CHALK IT UP! If it gets dirty, clean it with a wet rag