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 product. REUSABLE FABRIC SOFTENER – Replace chemically infused dryer sheets and liquid fabric softeners with an eco-friendly and natural alternative that will last more than a thousand dryer loads. SPEED 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 faster. SAVE 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.