MORE PRODUCTIVE, MORE EFFICIENT WORKOUTS Did you know it is scientifically proven that organization boosts productivity? A more organized space results in more efficient workouts and helps you sustain your motivation! Save yourself time and stress; reduce clutter; and stop yourself from getting frustrated before your workout starts so you can use that energy for busting out reps instead! Organize your gym space and watch the gains grow! ADJUSTABLE SHELVES There are many makes and models of dumbbells in the world, so we made this rack to suit as many of them as we can. The gap on our Dumbbell Rack shelves can adjust from 4.1 to 5.1 to accommodate different sizes of dumbbells with different handle lengths. Store a range of dumbbell weights and sizes all in one place.