dryer balls, made from 100 % New Zealand premium sheep's wool, tumble dryer balls for tumble dryers, hygroscopic, in addition to static charge.

Not bad. Clothes do seem to be softer with use in the tumble dryer, and I think my sheets and towels dry a little faster, but they do however still make a clonking sound in the dryer, not as much as the plastic ball types, can generally recommend these, the quality of this brand seems good, they have lasted well so far with continuous use. Fairly good value for money. Would have been nice if the sheep face was on each of the balls, not just one.