Shower sealer

More than less, I'm uploading this as a backup. But the shower head was leaking and it turned out the seal o-ring thing was chipped. I think it was 30 years old. Anyways, a quick print and this fixed the shower. Note you can get this part from most hardware stores. I think it is $15 for a shower repair valve kit. But this cost 1 cent. I'm not responsible for any damage. Obviously it may work for me but not you.