100% Alpaca fiber dryer balls. Made in the USA. A smart and healthy alternative to toxic dryer sheets and fabric softener. Toss a few in your dryer to reduce drying time, fluff, soften, and reduce wrinkles and static in the laundry. Will last for several years. Add a drop of essential oil to balls to naturally give a fresh scent to laundry. Recommend to use two at a time and always leave in your dryer.