Kettle Klear Descaler tablets are specially formulated to remove limescale from household appliances such as kettles and irons.  Regular monthly treatment with Kettle Klear will prevent the build up of damaging limescale  Removal of limescale improves energy efficiency. A must to keep your kettle at optimum boiling performance.  Safe to use, non-toxic and non-caustic.  Suitable for plastic and metal use. Six tablets in each pack.