Bowflex SelectTech Adjustable Weights and Dumbbells (single piece)Accomplish full body fitness results with the versatile home kettlebell weight that allows you to customize your resistance with a turn of a dial Single weight includes 3. 5, 5. 5, 9, 11, 16, and 18 kilograms to accommodate lifters at every level Designed with an ergonomic handle to add durability and comforting molding around the metal plates Adjust in small increments with a weight selection dial to gradually increase your strength while performing