These dryer balls are handmade out of 100% Canadian wool (from Salt Spring Island!). They are felted from 40g of roving each, which scales them on the larger side.
Wool dryer balls help to shorten drying time (30-50%) by bouncing in between the clothes and by redistributing moisture by absorbing some water. They reduce wrinkles and static cling.
To further reduce static cling you can hang your "plastic" clothes and avoid overdrying your laundry.
You can also place a few drops of your favourite essential oil on them to scent your laundry!
At the end of their lives (well over 10 years from now!) they will eventually biodegrade back into the earth. As opposed to other dryer additions such as scent sheets and plastic dryer balls.