Focus Ring Yi 4K - Pixaero lens

This is a small ring to attach to the Pixaero lens for the Yi 4K(+) action camera. The original focus ring is very small and hard to use and does not come with an indicator. The ring provides a much better grip and the missing indicator. If printed out of TPU it also protects the lens a bit.
Camera: https://www.yitechnology.com/yi-4k-plus-action-camera
Lens: https://pixaero.pro/