These headbands are easy to use. Simply place them around your head and adjust for a comfortable fit. They're great for daily wear, exercise, or a night out. When it comes to maintenance, you can gently hand - wash them in cool water with mild detergent and let them air dry. Remember, due to the chemicals in the product, avoid contact with food and always keep them away from children. Check the California warning link for more information about the chemicals in this product.