Sink Cleaning Sticks Pipe Tub Decontamination Sticks For Kitchen Toilet Water Tank Sewer Clean Bar Kitchen Cleaning Tools Description: Simply put into the sewer, special volume decomposition of stains to smell. Use one each month, a row is the amount of one year. Product Features: Drop an insert down the drain each month Prevent smelly pipes; stop odor at its source Breaks down and digests organic deposits and grease buildup Made of 100% powerful enzymes to keep your kitchen, bathroom, and utility drains clear of buildup and odor Safe for plumbing and septic tanks.