HARPIC HYGIENIC Cageless in the Bowl Twin Pack Harpic Hygienic Cageless in the Bowl is a cageless rim block with Hygiene Action. It helps you keep your toilet clean and fresh with every flush. It has wider coverage* and fragranced gel ends for a continuous fresh scent that lasts. * In comparison with Harpic Classic Rim Blocks According to our laboratory tests based on one pack HOW TO USE: 1. Remove the block from the packaging and connect the hook with the block. 2.Clip securely onto the rim of the toilet where the water flow is maximum, with the coloured gel facing outwards. 3.When the block is used up, simply dispose the unit in the trash and replace. 4.Wash hands after handling unit.