Features: 1. Continuously brush the toilet bowl with every flush, effectively getting rid of dirt build-up and ensuring your bathroom smells fresh all the time. 2. Effective Cleaning: Helps you effectively clean water tanks, water pipes, and other toilet parts. 3. How to Use: Do not tear off the blue outer protective film, which can be dissolved directly in the water tank. Leave the toilet cleaner in the water tank for at least 10 minutes before flushing to dissolve it completely until the water turns blue. 4. Convenient and Easy to Use: The toilet cleaner is simple and easy to use. Will not cause any damage to the internal organs of the toilet. 5. If you have any questions, please feel free to contact us. Notice: 1.Actual color may be slightly different from the image due to different monitor and light effect 2. Please allow 1-3cm deviation due to manual measurement Description: Weight: 50g Shelf life: 3 years Package List: Choice 1: 2x Blue Toilet Cleaning Ball Choice 2: 4x Blue Toilet Cleaning Ball Choice 3: 6x Blue Toilet Cleaning Ball