Materials, featuring smooth,surfaces that is impacts resistant,full of durability and won't deform.all edges and corners are rounded for , making it a fun piggy banks designed specifically for Automatic Insertion:Simply insert a bill into the slot, and it will be automatically rolled in with cool sound effects! A fun, interactive saving that makes feel like they have their own minis banks at home. Password & Fingerprint Unlock default password “0000”. enter the correct password and press the fingerprint button the door opens automatically!If the password is forgotten,remove the batteries and reinstall after 2 minutes to reset it to “0000”. for for birthdays, holidays, or everyday surprises. This electronic piggy banks combines fun and education the value of money, develop saving habits, and enjoy the prides of managing their own “banks.” There are different color optional.