4M KidzLabs Large Set Build Your Own Money Safe

Probably the most secure money safe in the world! Build and configure the digital lock, install an alarm buzzer. Challenge your friend and family unlocking it, they will be amazed. It's a fun project to learning a lock structure and connecting a wire. Contains plastic money safe casing and a set of accessories (assembly required), electric buzzer, electric wires, string for alarm trigger, metal pegs, battery case, and detailed instructions.