Product Name: Electric Hamster Roller Applicable age: 3 years and aboveGender:UnisexQuantity: 1 pcAnimal: hamsterMaterial: plush + ABS + electronic componentsChassis battery: 3 No.5 batteries (self provided)Hamster battery: 2 No.7 batteries (self provided)Weight: 0.35kgCute shape, placed in the bedroom or on the desk, looking at the cute pet when you are tired, the mood will be better.360° running wheel: run with the rhy thm of lighting and music.Hamster fabric is soft and comfortable to touch.Streamline surface, not hurt baby's hands.It's a very interesting toy, also a good gift for hamsters to play and live.Packing List:Electric Hamster Roller set*1Note:1. Please Allow 1-3cm Differs Due To Manual Measurement.2. Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.Please refer to the received product. Thank you for your understanding.