1,Containing special interfacial activity, water purifier, fungicide, and aromatic deodorant. 2,A protective film is formed on the toilet wall surface to avoid scaling. 3,Near-neutral formula does not damage water tank fittings. 4,Enjoys effective performance in terms of deodorization and decontamination. 5,Wonderful tool to bring cleanliness and fragrance for your toilet. Features: Containing special interfacial activity, water purifier, fungicide, and aromatic deodorant. A protective film is formed on the toilet wall surface to avoid scaling. Near-neutral formula does not damage water tank fittings. Enjoys effective performance in terms of deodorization and decontamination. Wonderful tool to bring cleanliness and fragrance for your toilet. Specification: Condition: Brand new Material: Water purifierand fungicideand aromatic deodorant Weight: 50gx2 Package Size: 17.2x 12.4x2cm or 6.77x 4.88x 0.79in Usage method: 1. Tear off the plastic shell (do not tear off the water-soluble protective film). 2. Put it under the float of the water tank, and pay attention not to block the outlet. 3. The protective film dissolves in water and the blue bubbles dissolve slowly in water. 4. Be careful not to approach the outlet when putting in, so as not to block the outlet. 5. Water temperature and quality have some influence on the release degree of the product. 6. When the color gradually disappears, please change it in time. Package List: 2x Toilet Cleaner Ball Note: Keep it out of the reach of children and pets. Do not eat Do not place it below -5°C. Please allow slight error due to manual measurement and make sure you do not mind before ordering. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.