In this case, one crafty LEGO user has created a safe with a functional 3-number combination lock.

The Lego Safe features a five double digit code lock, with over 305 billion different combinations. Put away your valuables in this Lego Mindstorms NXT Safe and nobody ever can get even close to it!

YouTuber Dylan Hacker, aka Household Hacker, has posted a video on how to build a Lego safe and it’s genius.

Once glued, the 2.7-inch thick walls made of interlocking Lego bricks and its five double digit electronic code lock will make it impossible to break for most people.