Olsen+Olsen dryer balls help improve airflow which decreases drying time. Toss them in your dryer and reduce your energy use by at least 25%. The perfect all-natural way to eliminate static, decrease wrinkling and soften your clothes, all while saving time and money. Ideal replacement for traditional commercial dryer sheets. Natural, hypoallergenic, chemical-free and biodegradable. Safe for sensitive skin as well as reusable diapers.