Superior Quality Wool: Made from 100% premium New Zealand wool with no synthetic fillers, these extra-large balls are tightly rolled and felted for a natural, long-lasting product. Reusable Fabric Softener: An eco-friendly and natural alternative to chemically infused dryer sheets and liquid fabric softeners, these dryer balls last for over a thousand loads. Speed Up Drying Time: By tumbling around in the dryer, the balls lift and separate laundry, allowing hot air to circulate more effectively and dry clothes faster. Save Energy Costs: Reduce appliance usage and lower electricity bills by shortening drying time by up to 25%.