Launder often? Go big with LooHoo’s Optimum 9-Pack, perfect for households with 5 or more people or those that regularly wash and dry large loads of laundry. LooHoo Wool Dryer Balls gently soften clothes without the harmful chemicals found in fabric softeners and dryer sheets. Using all 9 LooHoos will boost your dryer’s efficiency significantly, helping you conserve energy and save money. Optimum 9-Packs are packaged in a reusable cloth bag (or choose no bag and save money) and will last hundreds of loads.