Tru Earth premium dryer balls are all-natural, help soften your clothes, reduce your drying time thus reducing your energy consumption, and are reusable. Sustainably manufactured from 100% premium New Zealand wool, these dryer balls soften and fluff clothing, sheets, blankets, towels, jackets, baby clothes and more. Using dryer balls also prevents heavy items from getting scrunched up and tangled which helps your clothes dry more evenly.