Toilet Duck makes your Toilet Bright, White and Dirt-Free; Duck Aqua Blue Rimblock Toilet Cleaner is an in bowl toilet cleaner that keeps toilets fresh every flush of the way A Duck Toilet Cleaner that leaves behind an amazing, long-lasting fragrance Unique formula colours the water blue as it helps to clean toilet stains Includes 1 duck toilet rim block Available in AquaBlue and AquaGreencontains <5% non-ionic surfactants, >30% anionic surfactants, perfume, linalool, citral, eugenol, limoneneDirections for use: Unroll the hook and position the rim block under the toilet bowl rim where the water flows each time the toilet is flushed.SAFETY INSTRUCTIONS: Harmful to aquatic life with long lasting effects. If medical attention is needed, have product container or label at hand. Keep out of reach of children. For use only in toilet bowls. Wash and dry hands after use. As with any household product, avoid prolonged skin contact with this product.