Fuel Pureformance Adjustabell™ Dumbbell, Quick Select 5-50 Pounds, Single

So far, I like these dumbbells. They're extremely easy to adjust with a simple twist of the wrist, increase in 5-lb increments, and are easy to handle. The one minor drawback is that the cradle will stick to the dumbbell when try to extract it using the full 50-lb weight. In that case, you just need to hold down the cradle with your foot. This problem doesn't occur with any other weight size. I initially bought the FitRx dumbbells (for the same price on Walmart) and I liked them a lot, as they're very solidly built, can adjust in 2.5lb increments, and replicate the far-more-expensive BoxFlex dumbbells. However, those came with a big drawback. They were VERY long. They were 17" in length, and unfortunately, the dumbbell was the same length whether I was using 5 lbs or 50 lbs. This made it very difficult to do chest presses, shoulder presses, etc without the ends of the dumbbells crashing into each other. Fortunately, my friend had these Fuel dumbbells and I was able to test them. I like them much better because they are designed in a way where the length is dependent upon how much weight you're using, just like regular dumbbells (eg, 30 lbs has a 12" length vs 17" with the FitRx). Plus, the ends of Fuels are flat, vs rounded ends for the FitRx, making them easier to place on your knees. So I sold the FitRx and bought the Fuels. So far, so good.