Save space, money, and time spent travelling to the gym with Strongology's Home Fitness Adjustable Smart Dumbbells. With 15 different weight settings on each dumbbell, there's no need to purchase an entire set and worry about where to store all the weights. A quick and easy turn of a dial can adjust each dumbbell from 5 to 40 kilograms (11 to 88 pounds), while durable plating provides a smooth lift-off and quieter workouts.