Children proof safety knob, to avoid opening

I designed a simple splitted knob (one fixed to the drawer and one with an interlocking key) to prevent babies / children from opening.

-To be fixed by two M3 screws.

-The interlocking Key knob can be removed(by side sliding) and hidden in a safe place far from childrens.

The fixed piece has been chamfered to make it difficult to grab.

Can be printed without support material

Raft: No

Brim: No