Each set contains 5 dryer balls. The sets comtain natural grey balls and dyed wool balls.
Why use dryer balls? They are ecologically friendly. They reduce the time your clothes are in the dryer. They bounce around in the dryer with your clothes and so they reduce wrinkles as well. They reduce static electricity. And no one needs all those artificial scents and chemicals that are in the dryer sheets. Still want the smell? Add a drop or two of essential oils for a natural, healthy scent.