Really Nice Model! Made a few for my wife and her colleagues who are Midwifes. Printed on Ender 3 Pro. Filament choice was: 1.75mm 1Kg Silk Shiny PLA Most Basic Popular Multicolored Fast Color Change Rainbow 3D Printing Filament, Color Change Gradually Random Quickly, 2.2lbs 3D Printing Material by MIKA3D. 1 thing worth mention, I had a slight z scar on the back of my prints but I think I need to tune something on my end.