Lock-Jaw Barbell CollarsLock-Jaw Sport Olympic Barbell Collar - Quick Release Barbell Clamp (Black)

These are a little tight when new, but months later, while still a tad snug, they slide on well and lock nicely. Still a bit if effort is required, but I imagine they will loosen up further in coming months. So far no issues. Quality pieces.

They work great and love the color accent to change up you home gym. Easy use, one hand operation.

I am a professional barbell coach. I teach the main lifts- very similar to Starting Strength, and a bit of a mix of crossfit style programming for conditioning when appropriate.I say this to paint the picture that I have used many kinds of collars in applications where I might be pulling a 1RM or a heavy set of 5, or I might be doing a WOD with 30 cleans at 60kg.These collars hold as well as collars that cost 2 times as much, and I have no worries about them being damaged because they are made from durable plastic instead of aluminum.In my opinion, these collars are the BEST value collars. You might but cheaper, but over time you will replace them and what you buy will not hold as well as these. To get comparable ones, you would have to spend 2 times as much, and be concerned that the aluminum those collars would be made from might be mishandled and get deformed.That is about all I can say. I am very glad Lockjaw is making these and I plan to buy more of these as my equipment needs grow.

I've been using these collars for a few weeks in crossfit strength training and HIIT workouts and they stay securely snug on the barbell, even during a high release. They are a little heavier than the thinner plastic generic ones, which I'm gonna be optimistic and say that I suspect they are more durable and will last longer than thinner generic collars. They are also snug to slide onto the BB and tight to lock down, so if you don't have hand strength, don't get them.

I purchased these collars because my gym only had old metal collars and I was tired of them. I just keep these in my gym bag which they are light enough to keep them comfortably in there. So far they seem very durable and have functioned as expected. I'm happy with this purchase.

They are good decent priced collars

Good quality. Easy to take off and put on.

They fit super tight on the bar and are easy to use. They felt cheap because of how light they are but they do the job and the added bonus is that they don’t make my gym bag that much heavier.