Enhance your TANK® M1 workouts with the optional Dumbbell Cradles designed to increase traction during towing movements and let you take your strength training anywhere. This convenient attachment holds one pair of dumbbells weighing up to 10 kgs and is fully compatible with the all-new TANK M1-102 model. For users of the first-generation TANK M1-101, the Dumbbell Cradles can also be easily added with the use of our Elevated . Whether you're training at home, outdoors, or on the move, this simple upgrade adds versatility to your routine by combining resistance and functional training in one compact solution.