DIY wool dryer balls are a very cost effective way to eliminate chemical dryer sheets. The balls help eliminate static and allow clothes to dry quicker. These wool balls are easy to make, inexpensive, chemical free and may last up to 5 years. Add your favorite Young Living Essential Oils to the balls and enjoy that clean laundry scent! I followed these instructions with the exception of washing and drying the balls in the washer, I tied them in pantyhose and boiled them for several minutes, then allowed them to dry.