Very secure barbell collars. These are the OLY line which are designed for quick release and quick clamping. Very efficient. Run about 40 bucks new. 25 bucks or best offer.
Quick Release Olympic Barbell Collars 2" (Pair) - Non-Slip Weightlifting Barbell
Barbell Clamps 2 Inch Adjustable Weight Clips Olympic Barbell Collars 2PCS Black
Barbell Clamps Quick Release Olympic Barbell Collars Anti-Slip Grip
Quick Release Olympic Barbell Collars 2" Pair NonSlip Weightlifting Barbell ...
