Blake at Home wool dryer balls shorten drying time, soften fabric, and reduce static. They help bed sheets stay untangled and are made of 100% premium New Zealand Wool. Our dryer balls are all-natural, with no synthetic fibers or chemicals used. They will not unravel and will last for years. Wool dryer balls are quieter and more gentle on clothing than plastic dryer balls. Using dryer balls saves your dryer from residues left from chemical fabric softeners. Get rid of chemical-laden products and save energy at the same time.