Unique four chamber technology, provides a deep clean, long-lasting freshness, fiber care, and a boost of stain fighting Oxi powerPersil discs go deep into fabric, attacking tough-to-clean stains to deliver an exceptional deep clean for your laundryPersil discs are easy to use, just place the laundry pacs into your empty washing machine drum before adding laundryPersil discs clean effectively in all water temperatures, including cold, and work in all washer types, including high-efficiency (HE) washing machinesThis package includes two tubs of 38 Persil ProClean discs plus Oxi power, enough for 76 loads