These can be used over and over again instead of dryer sheets, plastic PVC balls, or chemical additives. They are an excellent green alternative to chemical-laden fabric sheets! Best of all they are money saving!! Safe for cloth diapers. Will not bleed.
Wool absorbs moisture and cuts down on drying time, often cuts times in half. The bouncing around of the balls increases air circulation, softens laundry and reduces wrinkles, as well as static. Lint and pet hair sticks to the balls.
The more you add the shorter your drying time. It is recommended to use 2-6 balls for a normal-sized load. For synthetic fibers, at least 4 balls are recommended. For large loads, at least 6 balls are recommended. By using 4 or more, drying time is usually reduced 20-50%, depending on the size of the load. If dryer balls start to pill, you can use a sweater shaver or leave them natural. Pilling may actually help the balls work better.