An alternative to dryer sheets and chemical fabric softeners. Pursonic 100% New Zealand Dryer Balls lift and separate laundry as it tumbles, reducing dry time, wrinkles and static by allowing hot air to circulate more evenly. 100% pure New Zealand sheep wool. Reusable Fabric Softener. Fragrance Free, dye-free, with no fillers, chemicals or synthetics. All natural and hypoallergenic means its safer for sensitive skin.