Fidget Spinner 608 Bearing caps

These caps have a mortice and tenon style connection. They fit together well and give you a place to add glue if you want.

This is a better version.

http://www.thingiverse.com/thing:1988435

Below is a link to my 2 spinners:

http://www.thingiverse.com/thing:1844145
http://www.thingiverse.com/thing:1842914