Using these head bands is super easy. Just place them around your head and adjust for a comfortable fit. 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, keep them away from children and pregnant women. Also, don't use them in a way that causes excessive wear and tear. If you have any concerns about the chemicals, refer to the warning link provided.