I have a large home gym with around $ 30k of equipment . this $ 400 set be my favorite and most use item . I have one set for I and one for my wife and they fit neatly on the stand . they be very easy to use and be the most comfortable dumbbell I have ever use due to the padded grip . I admit that I have my doubt at first . I be worry they the grip would not hold up , the weight selection pin would bend or the weight would fall on my head . after 4 year of regular use , my fear be unfound . the grip be intact and the weight stack be absolutely stable . I have try the newer adjustable dumbbell on the market , but this be still my favorite . the weight selection seem much more secure than the nautilus , and the grip be more comfortable . it be my opinion that these be still the best adjustable dumbbell out there .