Bests & Worsts Reviews from Amazon

I would not say they are better than dryer sheets at removing static, but I'm impressed that they cut my drying time on towels from 180 mins to 80 minutes. Since the washer washes faster than the dryer can dry, these wool dryer balls are going to live in the dryer now. Towels and insulated pants are no longer going to hold up progress with their longer drying times. I did a load of towels comparison to test these. I have a high capacity washer and when I fill it full of towels I have to run it through the dryer for 180 mins. When I checked them with the balls they were dryer at 40 mins than they used to be at 90, so I put them in for another 40 minutes. For towels at least... it literally cut my drying time in a little less than HALF. You can hear them in there but they aren't any louder than my washer and they certainly aren't as loud as tennis balls. They did not however remove all the static out of my load of microfiber towels. Overall I'm impressed with their cost savings!