Gravitrax simple connector

This is just a simple Gravitrax piece. Print one of each file and glue them together.

https://makerworld.com/en/models/1097164#profileId-1091756

UPDATE: It seems that https://thingiverse.com/thing:6748364 is projected to be deleted ever since I published this. My old design sucks but my new design is nearly as same as the original. The reason why it's because on the original "GraviRing.stl", its higher height of its outer core tends to lift the part slightly off the ground, which makes it very unsatisfying to use for me. Despite the fact https://www.thingiverse.com/thing:4132648 have the same issue as well, it's better to delete your old design that sucks once you publish an even better one.