This is a robot dog toy from about 30 years ago. When you wind the spring on the side of the body and turn the switch ON, the front legs move up and down, and the mouth opens and closes. It doesn't walk around, but moves in place. It's about 5cm, small enough to fit in the palm of your hand. It's not battery-operated, so no battery replacement is needed. You can play with it many times by winding the spring, and I think it's adorable. It's an old item and has been stored at home, so there are some minor scratches and stains due to aging. Please refrain from purchasing if you are looking for a perfect item. No returns accepted. Please understand that this is a used item. Thank you for looking. #robot #robotdog #toy #showaretro #retrotoy