Make your own felted wool dryer balls!

You will need to make a ball of yarn 9 1/4 inches in circumference to go inside the knit pouch. The size of the ball after felting will be between 10 and 10 1/2 inches in circumference.

I keep about 6 felted dryer balls in the dryer at one time. I have heard of people using as many as 12 and as few as 2 at a time in the dryer.