Exercise is a key to maintaining physical, mental and emotional health of your dog. The lack of this directly affects their behavior, some may have excessive aggression, disobedience, anxiety, obesity, among others; so it is very important to maintain a daily routine of games in which your body and mind is exercised. Puller is a toy that, when used regularly, helps to solve behavioral problems associated with the lack of physical and psychological stimulation, plus it helps to gain form and development of the musculature of the dog.