SUPERIOR QUALITY WOOL: 100% New Zealand premium wool with no synthetic fillers, rolled into tight, extra-large balls and felted for a natural, long lasting productREUSABLE FABRIC SOFTENER: Replace chemically infused dryer sheets and liquid fabric softeners with a natural alternative that will last more than a thousand dryer loadsSPEED UP DRYING TIME: As the dryer balls tumble around in the dryer, they lift and separate laundry allowing the hot air to circulate better and dry fasterSAVE ENERGY COSTS: Reduce appliance usage and electricity bills by shortening drying time up to 25%REDUCE STATIC CLING: Toss them into the dryer and your clothing will dry faster, fluffier and softer, with fewer wrinkles and less static cling