This is a handle I created to assist the elderly, disabled, arthritic, etc to turn the tap handles in the bathroom/kitchen/etc. This version is made for the 4 prong tap handle. There is also a 5 prong version available. 3D PRINTING SETTINGS This can be printed in PLA, better in PETG or ABS/ASA. A higher number of walls (4 or more), plus a higher infill 30% or more. Make it as strong as possible to ensure it lasts.