It is a rotating keychain with the iconic logo of the anime Dragon Ball Z. It is designed to be printed in red for the Z and black for the edge for greater contrast.

3D printing settings Layer height: 0.2mm Number of walls:2 Filling:5%-10%

Start with red color then change to black on layer 19 or at 3.8mm. If you want the keychain to be symmetrical start with black and change to red on layer 9 then change to black on 19.