Nature Wool The wool dryer balls are safe for people even for babies, children and the people with sensitive skin and also suitable for towels and cloth diapers since the dryer balls are made of 100% nature New Zealand wool and doesnt use any harsh chemicals.Healthy and Environmentally Friendly Choice: It can be a perfect substitute for drying bed sheets, natural wool, which can be recycled up to a thousand timesBetter for Your Clothesdryer balls can effectively avoid clothing entanglement, reduce static cling and wrinkles, and let cloths naturally fluff up and soft, it is nice as fabric softener alternative and can also reduce your dry time by around 15% ~ 25% Aboard Usage This wool dryer ball is suitable for all types of clothing, towels, linens, natural fibers, cotton, linen, bamboo, etc., can decrease wrinkles and static in clothes for time saving. WilPoem Enjoy the natural life