POWERFUL FORMULA - Toilet bowl cleaner tablets contain active biological ingredients that can degrade biological components in stains, thereby easily cleaning areas in the toilet that cannot be cleaned with a toilet brush. TOILET CLEANING TABLETS - Can be used to remove stubborn dirt below the waterline, as well as urine stains, limescale, rust stains, and old stains in the toilet bowl, achieving thorough cleanliness. EFFORTLESS CLEANING - Effervescent tablets dissolve quickly, effectively cleaning the toilet during daily cleaning without the need for scrubbing, only for rust and scale. Stubborn stains may require gentle brushing. GENTLE ON GLAZE - Adding stabilizers and citric acid forms a protective film on the surface of the toilet, effectively slowing down the formation of stains, keeping the toilet bright and shiny for a long time. LONG-LASTING FRESHNESS - Leaves behind a lingering lemon scent that keeps your bathroom smelling inviting for hours. Each pack contains 16 tablets, providing you with ample supply for regular cleaning sessions.