The Stamina Versa-Bell II 50 lb. dumbbell Pair in Chrome is nine dumbbells in one. This innovative 10 to 50 pounds adjustable dumbbell replaces nine individual dumbbells, but is the size of one so you save space and money without sacrificing quality. It s the perfect way to add dumbbells to your home workout area. The dial mechanism makes changing weight fast and easy for uninterrupted workouts. As you dial, the weight minder shows the weight you've chosen.Add the Stamina SPS Versa-Bell Dumbbell Stand (sold separately) to hold a pair of 50 lb. Versa-Bell Pro dumbbells. With a footprint of just 23 x 19.75 , it fits easily into most home workout areas.