Features 1. **Powerful Cleaning Action**: Our toilet bowl cleaning tablets utilize advanced biological enzymes and lemon extract to effectively break down tough stains, eliminate biomats, and keep your toilet sparkling clean. 2. **Easy to Use**: Simply drop a tablet into the toilet bowl, let it dissolve for 10-30 minutes, scrub with a toilet brush, and flush. Enjoy a hassle-free cleaning experience! 3. **Gentle on Surfaces**: Formulated to be safe for your toilet's glaze and plumbing, our tablets provide a thorough clean without causing damage, ensuring longevity for your bathroom fixtures. 4. **Odorless & Fragrant**: Enjoy a fresh and pleasant bathroom environment with our odorless formula that leaves a subtle fragrance, making your toilet not just clean, but also inviting. 5. **Value Pack**: Each pack contains 12 effervescent tablets, providing you with long-lasting cleaning power and great value for maintaining a hygienic toilet bowl. Our toilet bowl cleaning tablets contain lemon extract, biological enzymes. It is effective in opening blocked drainage fields and removing biomats. The way to use it is very simple: 1. Take the effervescent tablet and put it in the toilet. 2. Let sit for 10-30 minutes to dissolve completely. 3. Use a toilet brush for basic cleaning, then rinse. And its formula is gentle, it is not easy to damage the glaze of the inner wall of the toilet, and it will not damage the bathroom pipes.