Harpic Hygienic and Fresh sticker is a convenient self sticking adhesive toilet block that sits discreetly inside the toilet bowl, giving lasting freshness without the need for a plastic cage. It can be applied in 3 seconds without the use of any plastic applicators, and each colourful block dissolves slowly with each flush while giving up to 2 weeks of fresh fragrance. It is specially designed to freshen your clean toilet. A new and innovative sticker, not a toilet disc.