This Adjustable Kettlebell Weight set is a versatile fitness tool designed for weight lifting and strength training. The cast iron kettle bell features a size range of 10-40 lbs, with a recommended use of 40 lbs for weight training exercises. The black 40 lb kettlebell has a handle diameter of 1.37 inches, making it easy to grip during workouts. The set includes one kettlebell and is compact in size, measuring 13.0x10.5x8.1 inches, making it convenient for home or commercial gym use.