Using these head bands is easy. Just place them around your head to hold your hair in place. They are great for both casual and active occasions. When it comes to maintenance, you can gently hand - wash them with mild detergent and let them air dry. Remember, due to the presence of chemicals like lead and cadmium, avoid letting children put them in their mouths. Also, keep them away from food and drinks. For more safety details, refer to https://www.p65warnings.ca.gov/.