Set of two washing balls. To extend the life of your down item — duvet, pillow or down jacket — that is machine washable, we recommend using our wool washing balls. Remove them from their bag, simply add them to the drum of your machine along with your usual detergent, and select the desired programme following our washing instructions specified on each item. These washing balls for the washing machine allow your down item to be gently agitated for an optimal wash. Their felted, compact wool reinforces the effectiveness of your detergent through a mechanical action, washing your down items while respecting the fabrics. What's more, they can also be used in the tumble dryer to improve the drying time of your item and ensure an even distribution of the down, saving you from having to fluff it by hand regularly. 2 balls per pack 100% New Zealand wool Economical and eco-friendly No chemical substances Reusable up to 1,000 times