Grip-enhancing surface Bumps stimulate sensory nerves Smooth side for reduced stimulation Designated area for paw placement Adjustable intensity via inflation 30-day manufacturing defect warranty Pump not included The Balance Disc, an inflatable balance tool, aids in weight-bearing exercises, balance training, and core training for performance dogs. It features two training surfaces - one smooth for reduced stimulation, the other with nubs for increased sensory stimulation and grip. As your pet moves, they must engage their mind and muscles to maintain balance.