Pair of unique individual floating shelf brackets for solid wall or stud fixing with up to 40KG weight capacity per pair, when fixed correctly into a solid wall with a shelf of 250mm depth. The solid steel support rod is in total 172 mm long x 12mm diameter, with 72mm of the bracket rod length threaded for fixing into the substrate. Suitable for custom manufactured floating shelves of thickness 18mm (1.8cm) and above, and with a depth of 250mm.(Can be used to fit deeper shelves but weight capacity decreases as shelf depth increases) Use a minimum of 2 brackets per shelf, but we recommend at least one bracket is used every 500mm spacing in a solid/brick type wall, or on every stud in a cavity type wall. Not suitable to fit to steel studs or directly into drywall (gyprock) type wall sheet.