- HEAD PROTECTION: Safeguard your child with a durable PC shell that effectively absorbs impact, paired with a high-density foam lining for reliable and comfortable head protection. - ADJUSTABLE COMFORT: The adjustable design features a chin strap adjuster and a customizable head circumference, ensuring a secure fit and maximum comfort for all riders. - BREATHABLE PERFORMANCE: Enjoy optimal riding conditions with our bike helmet's breathable design and 12 ventilation holes, which promote airflow, keep you cool, and minimize sweating for longer, more comfortable rides. - WIDE APPLICATIONS: Specifically designed for children aged 5-10 years with a head circumference of 52-58 cm, these helmets provide essential protection for various activities, including cycling, scootering, and roller skating. - PRACTICAL USE SCENARIOS: Whether your child is riding their bike to school, zipping around the neighborhood on a scooter, or practicing tricks at the skate park, this helmet delivers essential safety and comfort for every adventure. - MATERIAL & PERFORMANCE: Constructed from high-quality materials, this helmet combines strength and comfort, making it an ideal choice for active kids who need reliable protection during their favorite sports activities.