Just let the cat play with Mutian Polygonum for 5-10 minutes at a time. Kittens under 10 months old cannot play with Mutian Polygonum. Adult cats can play with Mutian Polygonum 2-3 times a month. The cat is playing The owner should watch from the side when feeding the crocodile to prevent the cat from eating the crocodile. Mutian Polygonum can stimulate the cat's brain and make the cat in a state of excitement for a long time, so the cat cannot be allowed to play for a long time.