These adjustable dumbbells replace 10 sets of weights. Perfect home piece of equipment for the beginner to advanced. Weights adjust from 2kg to 20kg with a simple rotation of the wrist. Easily switch from one exercise to the next and with the turn of a dial, you can change your resistance, enabling you to gradually increase your strength. Versatile workout for your legs, back, chest, abs, shoulders, and arms. Sold as a pair.