The do not disturb flag is ideal to show your coworkers that you are in a full concentration mode.

One of the challenges is people interrupting because they don’t know someone’s in concentration mode. So, one compensation (not a solution, just a mitigating technique) is to use… Desk Flags.

Flag up = “I’m concentrating – do not disturb.”
Flag down = “It’s cool to talk to me.”

We've printed it with PET-G in the BCN3D Sigma 3D printer without supports. It is composed of 4 parts and it is really easy to assemble.

Enjoy it :)!