How to use: Put the helmet on your child's head and adjust the nylon straps until it fits snugly. Make sure it's centered and not too tight or too loose. When riding, always ensure the helmet is worn correctly. Note: This helmet is for toddlers aged 3 - 5 and is designed for biking, scootering, and skateboarding. Do not use it for other high - impact activities not specified. Maintenance: Wipe the outer shell with a damp cloth to clean it. Do not submerge the helmet in water or use harsh chemicals. Check the straps and inner shell regularly for any signs of wear and tear.