Twist the handle and select your preferred weight. There's no smarter dumbbell on the market. Start with the 2-20kg set and expand your dumbbells as your demands grow. Just get the expansion pack and add another 12kg per dumbbell..
Flexbell is “the world’s smartest dumbbell”, cleverly engineered to reinvent free weight training and strength workouts as we know them through patented gym-pioneering technology.
With the Flexbell, you select your weights with a twist of a handle and lift for an unparalleled, fresh-faced workout. No fixed or complex adjustable dumbbells needed.