The 00 null null Active Gel 4in1 has been developed for reliable and thorough toilet cleaning. It makes your toilet hygienically clean and eliminates 99.9% of germs and bacteria. The formula is strong against limescale and ensures hygienic cleanliness and long-lasting freshness. The product is available in a variety of fragrances. Application instructions: Lift the toilet seat. To remove the cap, press the two textured surfaces together and then unscrew the cap completely. Tilt the bottle to fill the neck with cleaner gel. Apply the liquid directly under the toilet rim and distribute it evenly within the bowl. Then, use the toilet brush to remove the loosened dirt. Finally, flush. Replace the cap and secure it tightly.