I had a deep wall shower mounting that used a harden 6' stem that needed to be cut to fit. I am not a plumber but swapping the part potentially saved me from having to replace the wall and fixture. The part is very high quality.

Same as above

The parts I ordered arrived rather quickly and replaced my old stems perfectly.

Correct diameter for our 28 year old fixtures. Hacksaw needed to cut down the stem and threaded housing.