Go for a wrinkle free and eco friendly laundry. Dryer balls, as the name already suggests, are being put in the dryer. They are energy saving, because your laundry by adding these balls will be dried quicker. You will be saving 20 to 40% in energy costs and time. Additionally your laundry will wrinkle less. Also the dryer balls will take up fluff off the clothing, so also ideal for pet hair. Product information: - dryer balls are hypoallergenic and baby safe, perfect for sensitive skin - this set contains 6 eco friendly dryer balls, packed in a cotton bag - the dryer balls are made of New Zealand sheep wool - 100% natural, eco friendly and recyclable - these dryer balls of wall contain their quality even after long use - reusable - including a handy bag of 100% cotton By adding a drop of essential oil your laundry will also smell nice. For smaller laundry use 4 balls, for bigger laundry use 6 balls.