IKEA Rinnig brush hook

This is a little add-on to the IKEA Rinnig brush, my wife doesn't like the original attachment system so I printed this little hook and she loved it. To mount it, slide it onto the handle from the thinnest part and then drag it to the thickest part where the friction will keep it in place.P.S. If you put the brush in the dishwasher to wash it, as my wife does from time to time, remember to remove the hook otherwise it will deform with the heat.