1. Material: wood
2. Applicable age: 3 years +
3. Music model power supply: button battery
4. Made of eco-friendly wood, safe and non-toxic, smooth and burr-free, play at ease
5. Multifunctional toys, educational and interesting, help exercise baby logic, hand-eye coordination, concentration, cognitive ability
6. Gopher game, parent-child interaction play, exercise children hand movement and reaction ability, patience and concentration
7. Fun 8-tone knocking piano, knocking piano multi-color piano piece, the first cognitive scales knocking process to develop the child musical rhythm, enlightenment of the child musical talent
8. Weight: 4 in 1 about 800g, 7 in 1 about 920g