What Is This 3D Printed Shape?

We are trying to study this 3D printed “hanging VAWT” device in Youtube video.

They say it is printed from white PLA material:

Please what is this 3D shape that they use?

Which 3D printer it is made with?

  • Ahmad

Obviously you would have to contact the youtube group, considering it is patented.
They give you all the particulars in the description.

It says what the shape is at the top of the video