Step 2 - What you need

You will need a drill, flat head counter sunk screws with a 15kgs carry weight or possibly 20kgs if fixing into studwork, appropriate sized rawl plugs and drill bit for the wall type, pencil, tape measure, hacksaw and sandpaper if required. 

You may want to consider using glass suckers, but most clients do not use these but it does make installation far easier /mirror-extras/