58mm adaptor ring and filter holder

My first 3D printing design! An adapter ring and a ND filter holder kit.

Most of the ND filter holders look the same and are all black. This filter holder looks different and can be printed in different colors to add more fun. The adapter ring fits on any 58mm lens and the filter holder can fit universally (if the outer diameter of adapter ring is the same).
It can house up to 3 filters at a time.

I will refine my design and add more size options in the near future.