I have try out the Bowflex SelectTech dumbbell . they seem very cheaply make . the plate be plastic . they be sometimes difficult to place back into the rack ; they have to line they up just right to put they back with the other wieght . this be difficult to do when you just work you arm to complete failure . they be very long even at smaller weight setting so they might hit you thigh when you be try to do arm curl . when do heavy dumbbell bench press most people like to balance the dumbbell on end on you leg so you can `` kick '' they up into place . the Bowflex dumbbell be not shape properly on the end make this awkward . it could also create a safety issue if the dial be bump and accidentally get turn . after search for the perfect dumbbell I decide on the Ironmaster Quick-Lock Dumbbells 5-75lb from ironmaster dot com . another better alternative to the Bowflex be the Powerblocks . but the Ironmaster Quick-Lock dumbbell will give you the look and feel of real dumbell , the stand be include , and a lifetime warranty . I love mine !!! -lrb- the Ironmaster Super Bench be awesome too ! -rrb-