About this item NEW UPGRADE FORMULA -- Our washing machine descaler with more active oxygen and biological enzyme ingredients. Remove harmful and stagnant dirt more effectively. Comes with 48 pieces of multi-functional effervescent tablets in total. Ideal gift for your family and friends TRIPLE DECONTAMINATION CAPACITY -- Remove soil, mineral, and detergent residue that may accumulate in the washer over time, prevents the build-up of malodor, which can be transferred to your laundry, and leaves behind a fresh scent and a clean washer. WORKS WITH ALL WASHING MACHINES -- Designed to penetrate, dissolve and remove odor-causing residue that can occur in all washing machines. Safe to use with Front Load Washing Machines and Top Load Washing Machines - High Efficiency (HE) and Conventional Washers. Safe for septic tanks, contains no phosphates. ONCE A MONTH -- Use once a month,1-2 tablets each time to keep your machine fresher and cleaner, which making your home life healthier. WARM TIPS -- Not for use with clothes. Each tablet is individually packaged. This is a 48 pack of Washing Machine Cleaner tablets designed for deep cleaning in front-loading and top-loading washing machines. The tablets are specifically formulated for washing machines, are septic safe, and are made in the United States. The product dimensions are 8.27 x 6.69 x 1.18 inches and it weighs 1.1 pounds.