Made from 100% New Zealand Wool, these dryer balls are a cost-effective, environmentally sustainable option to replace your dryer sheets. Our natural wool dryer balls are easy to use: just toss three (for a small- or medium-sized load) or six (for a large load) balls into the clothes dryer with your wet laundry and run the drying cycle as usual, although your load will likely take less time than normal to dry.