Played around with a couple of different gear fidgets, just didn't want to have to glue them together, wanted them to snap. My 16 year old daughter is crazy about helical fidgets so she is the official tester, and after a lot of playing and modifying, she finally approved. This fidget is loose enough to spin very easily, but not sloppy. It's an easy print. The pictures are .20, but .16 would be better.