I got these a couple of weeks ago, but only just now did enough laundry for a decent review. First, I saw some dryer balls about half this size at a craft market for $10 each, so these win on value, hands down. The order came promptly and in very nice packaging. As for function, I did note that while I usually have to untwist sheets and dry them longer, using these I didn’t have to do either one. My other clothes also dried faster and with less tangling and wrinkles. So, I’d say these are a five star purchase. Also comes with a fun new game I’m calling “Find the balls” when removing laundry from the dryer. Interesting how they make their way all the way inside the clothing.