The BG-11 Valor Fitness Dumbbell Rack is not only durable enough for club grade dumbbells but will look good in any setting. Load it up with your set of dumbbells and this unit is ready when you are. The Rubber Cup dumbbell holders can be removed for use with a set of 12 hex style dumbbell pairs. The only moving parts on this unit will be your arms and shoulders while performing a variety of multiple workouts. For the Dumbbell Pro, size does matter.