The Set of Two Blue Whitmor Dryer Balls is a practical and easy solution for caring for your laundry. They're chemical and allergy free so you can use them without irritation. Save energy and money with these easy to use laundry supplies by reducing the time that you have to run the dryer. Whitmor is a fourth generation family-owned and operated business. Since 1946, they've has been dedicated to bringing organization home by creating products that simplify everyday life. Ensuring that those products are built with integrity, value, and innovation is their commitment to you. They gently beat out the moisture and stiffness from your garments. The reusable dryer balls are more economical in the long run than purchasing boxes of disposable dryer sheets. They're non-toxic for safer use. Keeping sheets out of landfills is an environmentally responsible choice for your home. The balls are strong enough to hold up to many cycles.They're compatible with most standard dryer machines.