The file 'Drainage Mesh For Bonsai Pots Or Flower Pots (parameterized) 3D Printer Model' is (stl,scad) file type, size is 83.2KB.
STL is a 30mm diameter mesh with 2.5mm holes.
This model only requires about 0.25 grams of PETG filament.
You can change the mesh diameter, thickness, hole size and hole density using openscad.