These are genuine collars made by Lock Jaw Barbell Collars / Avus Design, and rebranded by Body Solid. It's made the same as their other Lock Jaw 2 Olympic Collars but with a yellow color.
Now in version 2 (2018), with 50% greater holding power than the classic version.
Durable and easy to remove, while providing superior grip strength. Unlike the prior version, these will hold better on drops with bumper plates, given a good bar with precise 50mm sleeves.
Clamp these onto a barbell in any type of environment - Crossfit, commercial gyms, or garage gyms - and put them through the paces. You'll be pleased, we promise!