But I found out that wool makes me itchy and they leave enough wool fibers in my tee shirts to bother me.

and I didn't think about people allergic to wool

What about noise? My daughter hates it when I use the plastic laundry balls because the noise bothers her. Her room is next to the laundry room. I was hoping the wool ones would be quieter.

It is a couple of years since we used them and I don't remember a loud noise

My washer has lost its spin mojo and I’m trying to get through until life gets better. If I didn’t use them, it would take forever to dry my super wet laundry.