Features: – Kids Multi-Sports Helmet – Youth Size Perfect for Young Children & Toddlers – Rugged & Durable Helmet Design – Safe & Secure Locking Click-Buckle – Fortified Impact Resistant Shell – Comfortable Form-Fitting Style – Adjustable Chin Strap Length – Breathable Airflow Ventilation – Safety Certified & Approved – Lab Tested to Significantly Reduce Damage – Convenient Adjustable Knob Dial System – Removable Inner Lining Padded Cushions – Recommended for Ages 3-8 Years – Used for Bike, Tricycle, Skateboard, Scooter, Roller Skates What’s In The Box: – Kids Bike Helmet – Helmet Storage / Travel Bag Technical Specs: – Construction Material: Reinforced Engineered ABS Shell – Recommended Head Circumference: Adjustable (48-54cm) – Total Helmet Size (L x W x H): 8.3’’ x 5.9’’ x 9.5’’ -inches