TANK™ M1 Push Sled (New model) - Torque FitnessThe TANK M1 but better. Improve your training with the TANK M1's new optional Console that gives real time training data, add traction and functionality for training on the go with the Dumbbell Cradle Attachment, and expand your training options with the improved 3 Position Tow Loop. 3 TRAINING LEVELS The TANK has three training levels: 1: Speed Power 2: Acceleration Power and 3: Explosive Power. With internal resistance sleds, Its not the number of