Funny PartyYou never know which teeth you push will let the toy bite your finger, very funny toy ideal for playing with your children or making fun in a party, always be a guest curiosity. Heard screaming sound and roar with laughter, hope you have a funny party! Safe MaterialWill never cause any hurt when it bite you, just a toy for fun, no need to worry about the safety of the toy. Eco-friendly and non-toxic material, harmless to health. Smooth surfaces, no burr, will not hurt skin. How to PlayThe rules are simple. Take turns pressing on a tooth, but don't pick his sore tooth! Or else Hippo will snap down on your finger! To win, be the only dentist who doesn't get bitten by the Hippo. Kids Action Skill Game ToyTraining the hand-eye coordination, parent-child interaction, cultivate interest, meticulous movement and cooperation, benefits your kids imperceptibly, suits for children above 3 years old. Two ModeCan be used with 2 AA battery or without battery, meeting different demands. You can play without batteries, however, when you touch the organ, hippo eyes do not shine and laugh. Kindly note: the 2 AA batteries are not included. Specification: Condition: Material: Plastic Battery Type: 2 * AA Battery(Not Included) Suitable People: Above 4 years old Package List: 1 * Toy Maintenance: Wipe down surfaces to remove dust with a clean cloth.