Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:365912.

Magnet rotator and simple holder for creation of your panoramas.
Free rotation 30, 60 , 90 180 degree on a manfrotto plate or direct connection possible.
The 10 x 4 mm magnets and a 20mm bolt to your camera are the ones to get hold of.
Also the magnets are fixing the camera and by pulling and turning easy to detach.
Works great but beware of magnetism and memory cards!
(The lensholder is also on my collection) other here https://www.thingiverse.com/thing:2810603