Set Includes Contains 20 individually packaged tabletsFeatures Removes mineral build-up Extends life of machine Baby-safe, hypo-allergenic and fragrance-free Use 1 tablet to descale machine. It's recommended to descale the machine after every 20 Wash Cycles. If you have hard water, you should descale more frequentlySpecifications Compatible with the following (sold separately): Exclusively made for Baby Brezza Bottle Washer Pro Manufacturer's 1-year limited warranty