I researched adjustable dumbells for some time before buying these. These are easy, compact, robust, quality weights. I love the stand design and height so you don't have to bend over to pick them up off the floor. Very flexible product to use on P90X workouts from 15-50+ lbs. They are a little bulky below 15# so I just have separate 5, 10, & 15# dumbbells that I use. Not a "must" but a "want" on my end.
Pros: Balanced Dumbbells, Compact, Durable, Easy To Use, Great Stand Design And Ht, Only Adjustable In Stand, Quick Adjustment
I use these dumbbells with my P90X workouts. I absolutely love the fact that I can quickly and easily change the weight on each dumbbell, and I don't have to search around for the weight I need. They are sturdy, I haven't had a problem with them at all. And if you accidentally don't turn the knob all the way, so the weight is equal, they won't pull out.
Pros: Compact, Durable, Easy To Use, Multifunctional, Targets Muscles
Really enjoy using these for the P90x workouts. Don't need to have a rack of weights in the room taking up extra space. Can easily turn the dial to the weight I need. When company comes over, can easily move them to another room or closet.
Pros: Compact, Durable, Easy To Use, Multifunctional
I've been using the 552s for about a month now and love them. I've looked at other adjustables in store and there is no comparison. At first I though it was a bit pricey but after using them a bit I feel the price point is perfect.