High Quality Material: Eco-friendly ABS plastic; Safe analog design, no smell, strong and not easy to break. (White has another function compared to other colors: it comes with 11 popular English children's songs.) Password piggy bank: four-digit electronic password protection, the wrong password will be issued. Only enter the correct 4-digit password to open the door, the green light is on, turn the knob clockwise to open the door. (default: 0, you can change the password at will) Large Capacity Money Box: This piggy bank can hold 600 coins or 100 bills. Having your child plan to save pocket money will greatly help your child develop a good habit of saving money. Automatic Banknote Rolling Insert a banknote into the slot on the top of the Kids ATM Money Bank and it automatically rolls into the ATM machine. Easy for kids to use. (but doesn't work if the paper is too old or too soft). Perfect Gift: Kids will love receiving this cool money savings bank. It's fun and educational, and teaches the importance of saving. It is the best gift for birthday, christmas, new year, prize, reward, or any other holiday gift.