To use this grab bar anchor, first make sure you have a 1/2 - inch thick toilet compartment panel. For each flange of the grab bar, use one anchor. Place the anchor in the right position on the panel and then install the grab bar following the normal steps. When handling the anchor, be careful not to drop it or damage it. After installation, check regularly to see if the anchor is still firmly in place. If there is any looseness, tighten the connections. To keep it in good condition, clean it with a mild cleaner occasionally.