This is a super low-profile AMS mount. It only lifts it about ½ inch, just to take a little strain off the PTFE tube for the hotend. Mine were wearing out too quickly.
I was very happy with these but I started to notice prints fail to stick, and it turns out that the PTFE tubing that runs to the hot end gets slowly sanded into powder and coats the bed. Attached photo was taken only after days of use :(