Our sink cleaning tablets contain D-limonene, bioenzymes, citric acid. It can strongly remove stains, completely remove residues, eliminate odors, and have a long-lasting fragrance. Its use method is very simple: first open the package, take out the cleaning sheet, and then put the cleaning sheet in the sink tube, rinse with running water. Finally wipe the sink clean with a clean towel. After use, quickly and easily dissolve grease, garbage, soap dirt, grease, deep cleaning kitchen utensils, make the whole kitchen look new.