The Stamina 50 lb. Versa-Bell II Pro is nine dumbbells in one. This innovative 10 to 50 pounds Stamina 50 lb. Versa-Bell II Pro replaces nine individual dumbbells, but is the size of one so you save space and money without sacrificing quality. Add the Stamina SPS Versa-Bell Dumbbell Stand (sold separately) to hold a pair of Stamina 50 lb. Versa-Bell II Pro. Versa-Bell Pro dumbbells. With a footprint of just 23 x 19.75, it fits easily into most home workout areas.