There’s 2 options. If you have a solid masonry wall, then all you need is a set of Fischer bolts. These are double ended fittings; one end is screwed into the wall using the included wall plugs. This will leave you with two threaded bolts protruding from the wall. The basin is offered up over these bolts and secured using the washers and nuts provided in the kit. The other option is a basin frame. These are secured to the floor and wall, and are faced with board and tiles etc. to finish. The advantage to this for installation is that they also contain water and waste fittings, which make the installation a more straightforward.