Selby's Glass Shelf Non-Skid Locking Support locks glass into place with a nylon suction cup and fastening clip.
It fits 3/16" to 1/4" thick glass.
Includes a Brass expansion bushing that is inserted into holes in the sidewall, and insertion of the steel screw opens the bushing to lock into the hole.
Projection is 3/4" and the shelf is raised 11mm (7/16") above the hole location.
The two pieces are sold as a set.
The support has a Nickel Plated Finish.