Product information Material: Burlap Fill: PP cotton Design: sound device Features for your pets 1. Grind the Teeth. When pets are teething, they feel itchy,they need something to bite, if you give him or her a toy, he or she will destory furntures in your house. 2. Spare boring&lonely time. It's very easy for pets to get bored and lonely when you are working, anyway, not stay with him or her, if you don't give him or her a toy, as time went on, pets will get sick because of lonely.