This wool dryer ball bundle (5 balls) is made from 100% New Zealand wool and are handmade. They are 2.75" diameter each and work together to achieve wonderful benefits. Not only do they allow you to rid yourself of toxic dryer sheets, but you can also ditch the fabric softener. The balls bounce around to lift and seperate your clothes, allowing air to circulate and cut down dry time. With these dryer balls, you are able to switch to an eco-friendly option while saving energy! Add your favorite essential oils to the balls to give your clothes an added scent!