About this 3D model

I saw this great thing http://www.thingiverse.com/thing:3550 so I made the nine rings for the lanterns' corps ! all rings = 0.6inch measure your finger size, change the scale with netfabb, export and print it ! for exemple : your finger size = 1inch change the scale factor to 1 / 0.6 = 1.66 and print it