Unlike traditional weight machines, using dumbbells requires your muscles and joints to work in a coordinated fashion to maintain the proper form while exercising. Balance and coordination are thus improved, along with fundamental muscular strength. Using a vinyl dumbbell set not only provides progressive increases in the load, but the vinyl coating protects your floors and provides a more comfortable grip for the user. Using a dumbbell set with rack is a convenient way to store dumbbells and keep them from accumulating on your fitness center floor.