LU BLUEToilet Flush Colourant colours, cleans and freshens your toilet with every flush. Lu Blue is great for use in every toilet as it colors the water blue and provides long lasting freshness time after time. With this product your toilet is sure of a clean and welcoming ambiance all day long. Simply drop into your toilet cistern at home or at office/work and enjoy a coloured, fresh, clean and  scented toilet. This affordable toilet flush colourant block freshens and cleans with each and every flush and helps preventlimescale.Sold in packs of 12 for your convenience with excellent user experience. Direction: - Remove the Cistern cover- Lift tab on the card and pull back, do not remove the special wrapping on the block as this will dissolve in the water- Drop the block into the water inlet. when the colour begins to fade, replace with another block. LU BLUEToilet Flush Colourant colours, cleans and freshens your toilet with every flush. Lu Blue is great for use in every toilet as it colors the water blue and provides long lasting freshness time after time. With this product your toilet is sure of a clean and welcoming ambiance all day long. Simply drop into your toilet cistern at home or at work and enjoy a coloured, fresh, clean and  scented toilet. This affordable toilet flush colourant block freshens and cleans with each and every flush and helps preventlimescale.Sold in packs of 12 for your convenience with excellent user experience.