instecho Fitness Tracker

Work on every two inch barbel/dumbbell I've attached them to, and have plenty of gripping powerJust don't try hammer curls because they won't hold that well with anything more than 20 pounds - there might be a way to stuff something under the rubber portion to get them to grip tighter but I haven't had a need to experiment with that

Good product quality. They still work perfect after many years of use.

Very solid well built equipment. I am very comfortable I will not injure myself using these at home in my weight room. Easy to use. I put them on my Olympic dumbbell handles, as the original "locking" collars were total junk. I have not had them long but I am confident that they will last for a long time. Excellent value for the money.

Got this watch to see if I would wear one everyday. I did end up wearing it a lot but if you go swimming it touches the screen on the watch.

They work very well. I will have them after almost 3 years. Good quality and sturdy. They have been through a lot of deadlifting: weight as high as 405, 20 reps of 225, 10 reps of 315. These things can hold their own. I also use them for whenever I want to mix it up to do cleans and jerks.

I've had these for about a year. I first saw this style of collar at my gym, where a lot of the power lifters were using them. They're so much easier and quicker to snap on and off. I'll never go back to the spring or screw styles again.

Have used several makes of locking collars, and these are my favorites thus far....they closing/locking mechanism is smooth as butter, and seems very secure....wish I had found these from the start, but glad i have them now...get a pair of these and you can't go wrong

Easy to put on, easy to get off. Have not slipped yet but I should note I am not doing crossfit exercises. I am using these instead of those spring clips that everyone else has. Use them for deadlifts, squats, benches, military press and power cleans with no slippage.