I want a set of dumbbell that I could use at home and that would not take up too much space . when PowerBlocks be release , I think they would perfectly meet my expectation , I choose , however , not to purchase PowerBlocks and instead buy the old fashion dumbbell bar that permit weight to be add plate by plate . these have be great except that weight change be time consuming . so , after several year of wait , and after have read the many positive review about this product on Amazon , I purchase a set of PowerBlocks . I recently receive the PowerBlocks and have be use they ever since . without a doubt , they have meet all of my expectation and be one of the best fitness purchase I have make . powerblock take up minimal space , weight change take only a few seconds and it have be excellent have a weight range which go down to 3 pound . that last point may sound strange , but I generally would not spend money on weight weigh less than five pound becuase of how infrequently I would use those weight . here , I get the benefit of have those weight without have spend the extra money on the same . I do not have anything negative to say about this product . in fact , my next purchase will be the 5 to 50 pound classic set . I also want to say that I be not affiliate with PowerBlocks or any other fitness company - I be a attorney . I mention this because I believe that many review - either heavily positive or heavily negative be either write by person affiliate with the list product or , in the case of a negative review , a competator 's product . in this case , I be simply a happy customer .