PACKAGE INCLUDED: 3 balls, green IQ training ball, orange ball with drawstring and black dog toy with squeaky tones. When the ball rolls and the dog bites the toy, a unique sound will be emitted. No batteries are needed. DURABLE magnetic field theory is used - Made of natural rubber - Bite resistant, sturdy and environmentally friendly - Free of toxins and unnatural plastic. Fill the ball with assorted treats. When using the ball, the treats will fall out, piquing the dog’s interest. The dog is encouraged to move the ball as he quickly learns that the treats are falling. He learns that a rolling ball means food and fill it with assorted treats. When using the ball, the treats will fall out, piquing the dog’s interest. The dog is encouraged to move the ball as he quickly learns that the treats are falling. Learn that a rolling ball means food.< / P>
