Blue Toilet Flush CleanerThe blue bubble toilet freshener and flush cleaner is a must have for anyone who wants a clean, fresh smelling toilet. Made from non toxic materials, this product is safe for children and pets. The toilet refresher is designed to release a slow release formula that keeps your toilet fresh and clean for an extended period. The blue colour of the product adds a pop of colour to your toilet bowl and makes it look clean and inviting. Each unit measures 4.