Your finished keyring must be no larger than 80mm x 80mm x 6mm so we can send it in the post!

You must not use AI or any graphics that you didn't create yourself.

The keyring must be flat on one side so it can easily be 3D printed!

The keyring needs to have a 5mm diameter hole for a carabiner.

You need to either use Fusion or Onshape (the tutorial is designed for Fusion, but we like both programs!).

You are in middle school or high school ( in other words, aged under 18).