1. Please allow a 1-3 cm error due to manual measurement. Make sure you don`t mind before ordering. 2. Please consider the difference between the photo and the actual item. Results depend on the lighting, monitor, and environment. 3. Keep out of reach of children. Store in a cool, dry place from direct sunlight and moisture. No need to remove the film— it dissolves automatically. 4. If accidentally swallowed, drink plenty of water and seek medical advice immediately. 5. If the product comes into contact with eyes, rinse thoroughly with plenty of water and seek medical attention right away. 1. Effortless Cleaning: Automatically cleans the toilet with every flush — no scrubbing needed to keep your toilet sparkling clean. 2. Odor Reduction: Releases a fresh fragrance during flushing to neutralize unpleasant odors and keep your bathroom smelling clean. 3. Anti-Stain & Lubricating: Helps prevent dirt and stains from sticking to the toilet bowl. 4. Safe to Use: Gentle on toilet surfaces and tank components. 5. Long-Lasting: The unique water-soluble film ensures gradual release of cleaning ingredients. Each block lasts for up to 350 flushes (actual duration may vary depending on water flow and usage habits). Special Surfactants, Coagulants, Antibacterial Agents, Colorants, And Fragrances. Store it in cool and dry area China