It's in the middle of the night, and you are trying to sneak back in to home quietly and as subtle as possible. Then, while you struggle to insert the key into the hole, you drop it.
This is just one of the common challenges when we try to open doors. Some choose to upgrade their cards and tap an access card instead. Others simply ring the door bell.
With the Concave Lock, you don't need to worry.
Featuring a neon glowing ring, it actually concaves in, creating a funnel and guiding the key to where it belongs.
It is currently designed by Poh Liang-Hock, and you can get more info here.