Wool dryer balls speed up drying time by tossing the clothes around in the dryer, absorbing moisture, spreading the heat, and preventing static electricity. Our wool dryer balls are the best eco-friendly alternative to dryer sheets or plastic balls, since they are 100% natural, they don't release any chemicals during the drying process. Material: Ethically hand felted from 100% New Zealand wool Size: Each ball is 7.5 cm in diameter   Fair Trade Product: Goldrick's dryer balls are ethically made in Nepal. Every purchase contributes to an educational support program, providing scholarships to underprivileged children from remote parts of Nepal. You can feel good knowing that this purchase has a positive environmental and social impact on communities.Care and storage instructions: You can store your dryer balls in the dryer between cycles, or return them to the nifty bag they come in. Fragrance tip: If you miss the lovely fragrance you had when using dryer sheets, here's a much healthier and better alternative: Add a few drops of your favourite essential oil to each of the dryer balls. Give them time to absorb the oil over night and they'll be ready for the next load! You'll notice a subtle, non-toxic fragrance in your clean, soft laundry.