Wool Dryer Balls are a reusable, energy-saving alternative to dryer sheets. Made in Maine using 100% Domestic Wool, they naturally soften clothes without the use of unwanted harmful chemicals contained in dryer sheets. Because of wools natural ability to absorb odors and toxins, our Wool Dryer Balls will leave your cloths smelling fresh and clean and can also reduce your dry time by 10-25%, saving you time and money. Box of 3. Available in 2 colors.