This donut holder from FitPAWS is perfect in trick training, agility tire jump training and fun aerobic exercise. The training ring holder is a good training tool if your dog is new to the FitPAWS donut\'s dynamic movement. You can start training by placing the donut in the holder. As your dog gains more core muscle strength and learns how to control his balance, you can remove the holder and challenge him with the donut directly on the floor. The holder can also be used individually as a hand-held jump-through ring for trick training, agility tire jump training and fun aerobic exercise with your dog. The holder easily inflates with a standard air pump with cone-shaped attachment. Do not over inflate the donut holder. Note: Pump and FitPAWS Donut are not included.