The washing balls capture lint, wool balls, hair, and much more thanks to their special surface during the wash, ensuring lint-free, cleaner laundry that eliminates the need for post-treatment with lint brushes or rollers. They are also ideal for washing wool sweaters. The washing balls are simply added to the washing machine and are washable up to 60°C. The effectiveness of the detergent is enhanced, and the washing machine and drain stay cleaner for longer. The lint balls are reusable and should be cleaned of hair or lint before the next use. The package includes 6 laundry balls.