Description: 1 Piece CE certificated high quality unisex sport safety helmet High-density ABS outer shell and soft EVA inner pad offer good protection Vents design, highly breathable, comfortable to wear, adjustable dial to customize fit Adjustable head circumference around 54 - 62 cm/21.3 - 24.4 inches Universal, great for cycling, roller skating, scooter, skiing and water sports, etc Specification: Material: ABS Color: Orange, Blue, Red Size(Length x Width): Approx. 25.5 x 22 cm/10 x 8.7 inches Head Circumference (Adjustable): Approx. 54-62 cm/21.3-24.4 inches Package Includes: 1 Piece Sport Safety Helmet Note: Color maybe slightly different due to different monitor. The above size is measured by hand, please allow slightly difference. Thanks