Fits into a 5mm hole.
Nickel-plated steel shelf support locks glass in place with a nylon suction cup and fastening clip.
Adjusts to fit up to 1/4" glass shelves.
Brass expansion bushing is inserted into holes in the sidewall and insertion of the screw opens busing to lock into hole.
Projection is 3/4" and shelf is raised 7/16" (11mm) above the hole location.