My husband and I have a well-equipped garage gym including basic dumbbells. Lifting weights is great except when you know you need a weight that you don't have or when you need to increase your weight -- but increasing by 5 or 10 lbs is just too much. On a whim, I bought a 2-pack of these. And, OH MY! I used them last night and they were a game-changer for me in the gym. So easy to put on a weight. So easy to remove. I am actually going to be buying a second set (as recommend that our local gym purchase a few too)! I highly recommend these for anyone who needs a little extra weight in the gym!