Alpaca is hypoallergenic!. Softens naturally. Eliminates wrinkles and static. Reduces drying time by 25%. Can be re-used indefinitely. Reduces waste. 100% pure alpaca fiber. Lasts up to 5 years. Set of 2 dryer balls in each bag. Throw both dryer balls in the dryer. If you want to add essential oils, just wet alpaca dryer ball and then squeeze excess water out, if any and sprinkle on essential oil. Makes the clothes smell wonderful and fresh. Makes a great house warming gift. Colors may vary. Quantity is 2 dryer balls per bag.