EcoFreax dryer balls are handmade from 100% natural New Zealand wool and come with a 100% cotton pouch for easy storage. Each set contains 6 white or grey dryer balls that are about 7 cm (2.75") in diameter. No chemicals, perfumes or dyes are used to make them. Each ball is hand crafted using only natural wool. They are tested to last for 1000+ loads. Simply store them in your dryer between loads. Available in natural colours (no dye) grey or white. The colour does not affect the performance in any way and will not transfer to the clothes as it is the natural sheep's natural colour. How do wool dryer balls work? Dryer balls work by tumbling between layers of clothing by splitting them during drying. By doing so it allows for a better circulation of warm air between the load and therefore cutting the drying time. They will also collect any excess water from the walls of the dryer. How to use dryer balls Throw about 3 balls into the dryer and let them do their magic, they will p