Printed from PLA flexible material, 0.3mm thick. No, brim, 100% infill and of couse no support.
Due to the flexible material and thin surface, it is worth carefully detaching it from the bed after printing. There may be a slight deformation due to the material, but it will fit nicely onto the part, which will be held in place by the fixing screws.
The author marked this model as their own original creation.