Designed to work with the "Bruce CKS01 Hardwood & Laminate (Terry Cloth Mop Cover) Flooring Cleaning System". I store the mop in my stairway and it would hang where the mop head would protrude into the walking path. This simple hook clips to the shaft and can slide down to keep mop head vertical. When ready to mop, it can be removed or slide up the shaft to allow mop head to hang and swivel freely.

This is a very snug fit on the Bruce Mop. May cause some cracking during install, or make slightly bigger for looser fit.

Can work with ~21mm diameter shaft. Can also be customized for other items, like a Swiffer Dry Mop.

Quick print. I was able to print on my Ender 3 in under 1 hour.