Description: ABS outshell and EPS body, high impact resistance, toughness, strength and rigidity Inner layer aeration holes fabric, breathable and comfortable, help to keep this cool even in summers Environmentally friendly material, non-toxic, anti-allergic, and no harm to your skin Shiny finish surface and stylish shape, more pleasing than your standard bike helmet Great kids helmet for Biking, Rock climbing, Scooter, Skating, Skateboarding, Street dance and etc. Specification: Material: ABS plastic Head Circumference: approx. 50-55cm/19.7-21.7 inches Package Includes: 1 Piece Kid Safety Helmet Note: Color maybe slightly different due to different monitor. The above size is measured by hand, please allow slightly difference. Thanks !