The scientific way to automatically clean your toilet! Guaranteed 5 years or 50,000 flushes! Easy to use:-- Just drop in the tank, hydromineral Magnets- No more scrubbing, Mineral particles in the water interface and are affected by the Mineral Magnets in a way that prevent the mineral particles from forming stains and hard to remove rings around the toilet.- Chemical Free, eliminates the need for chemicals! Nothing added into the water, safe for children, pets and the world environment! Attractive price Only $19.90 each - No other cleaning products required anymore for 5 years!Place your order at 6293 4778, or walk in to 7500A Beach Road, The Plaza, #07-310/311, Singapore. Minimum order of 2 pieces can enjoy free local delivery to your home or your office! Million had sold worldwide and in great demand now at Japan!