This is just a cap for the drain of a Bestway pool. Needed one since we lost ours to protect it from dirt. Found one with a hole from Mickeynurse and filled the hole. The hole isn't perfect, since they height of the inner side is between 2.88mm and 2,89mm and can't go between those values.

Printed using a Anycubic Kobra X with 0.2mm layer height and 10% infill.