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OSO Barbell

OSO Pro Collars



One pair of Pro Series original OSO barbell collars. This revolutionary design is the gold standard for Olympic Barbell Collars. This item is a must any functional fitness program that uses Olympic weights and bars.
· 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
· Locking clamp mechanism for secure hold
OSO Barbell will warranty this product from defects in material, functionality and workmanship for a period of 2 years from the date of purchase. Please contact us at and explain the issue. We will either send out replacement parts or a new set of clamps.
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. These collars weigh in at 1 pound a pair, have pockets machined in the faces to protect the color of the collars and are built with stronger sidewalls.
Here are some best practices:
Open the collar until it clicks – 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!