Let go of chemically laden dryer sheets and fiber clogging fabric softeners. These simple 100% wool dryer balls reduce drying time, reduce static buildup, and with a few drops of your favorite essential oil, freshen an entire load of laundry. We gather the raw wool and turn it into roving then shape and felt. Properly maintained, these woolen gems can last for years. It is recommended to begin with 3-4 dryer balls to notice a difference. We personally have 12 in our dryer, and a load of towels or jeans finish faster than our washer can wash.