Features: 1. **Powerful Cleaning Action**: Our effervescent toilet cleaner tablets effectively tackle stubborn limescale, rust spots, and tough stains, ensuring a sparkling clean toilet with minimal effort. 2. **Easy to Use**: Simply drop a tablet into the toilet bowl, let it dissolve for 10 minutes, and flush. Enjoy a hassle-free cleaning experience without scrubbing! 3. **Safe for Plumbing**: Formulated with mild ingredients, our tablets are safe for your toilet's glass and plumbing, providing a thorough clean without causing damage. 4. **Long-Lasting Freshness**: Each pack contains 12 tablets, offering long-lasting deodorization and freshness for your bathroom, keeping unpleasant odors at bay. 5. **Convenient Packaging**: The 12-pack ensures you always have a cleaning tablet on hand, making it easy to maintain a clean and fresh toilet effortlessly. Our toilet cleaning effervescent tablets contain isopropyl alcohol, propanediol butyl ether, lauryl ether 7. It can help remove stubborn limescale, scale, rust spots and other stubborn dirt, making the inside of the toilet and tank cleaner. The way to use it is simple: 1. Take an effervescent tablet and put it in the toilet. Let stand for 10 minutes until completely dissolved. 2. Press the toilet switch to flush and clean. The formula is mild and will not easily damage the glass inside the toilet, nor will it damage the bathroom plumbing.