To be printed with flexible material. Layer height 0.2, 100% infill, 4 perimeters, you should consider using a brim for better adhesion to bed. No supports needed.
Fusion 360 file is available at my thingiverse account (was not able to upload it here) https://www.thingiverse.com/thing:4945733/files
The author marked this model as their own original creation.