pro - Easy to build , few part - the wheel be great for move those heavy dumbbell around - the wheel can be lock in - option to not use the wheel - just the right height for I , I be 5 ' 11 '' - strap safely secure the dumbbell - small footprint con - none final word - if you already own the Bowflex SelectTech Dumbbells you 'll see how helpful it be in they workout dvd .