Alpaca dryer balls are an inexpensive and reusable Eco-Friendly alternative to dryer sheets. Place the alpaca dryer balls in your dryer (use up to 3 dryer balls) for a natural way to soften and fluff your laundry. Just leave them there between loads. They help reduce the drying time by as much as 25%, saving on your electric bill. The dryer balls reduce wrinkles and static without the use of dyes or harsh and potentially toxic chemicals. The size is about 1.2 oz., about 2.7”, roughly the size of a tennis ball.