EMONO piggy bank has a cool appearance. A cute way to encourage kids saving and learning how to save money, The lights flash effect and code for opening should be really interesting for kids. Exquisite design, the appearance of cool, Is the best choice for gift gifts. Warm Note: *Do not mix the use of new and old batteries. If you don't use it for a few weeks, remove the battery. Make sure the battery power is sufficient when using, otherwise,it will affect the automatic roll money and unlock function of the Piggy bank. This "MONEY SAFE" is recommended for the ages 5 and up, not suitable for under 3 years old as the toy is electrical and mechanical.