■ Brand (BRAND): CAIRBULL■ Model (MODEL NO.): CB-37■ PRODUCT: Cairbull FIND 2019 Urban Recreational Bicycle Electric Scooter Balance Bike Folding Riding Helmet■ Applicable (FOR): road mountain bike■ Material (Material): shell imported PC + internal imported EPS■ TECHNOLOGY: In-Mold■ COLOR: 8 colors available■ Size (SIZE): M / L (55-59CM)■ Inner width (WIDTH): 17.5-18CM■ Venting holes (VENTS): 18■ Structure: External IN-MOLD (integrated molding) impact-resistant PC, internal EPS integrated molding to absorb impact technology   Color box size: 30.5x13.5x15.5cm (length x width x height)■ CERTIFICATE: CE EN 1078