Add another Dimension to your Aqua Aerobic Workout with 66fit Aqua Dumbbells! The 66fit Aqua Floatation Dumbbells have been designed to add extra resistance to your pool based exercise regime.Suitable for use during both rehabilitation and aqua aerobic training sessions, use our floatation dumbbell set to strengthen and tone the upper body area. Please Note: This is not a lifesaving device.