Not only is this lovely and cool with design, but also the bike can protects kids head perfectly. This is very sturdy with high density plastic shell, besides, the provides great shock-absorbing performance and comfortable cushion. The has buckle straps for under chin which holds it in place. It’s a great protecive gear for kids when they are cycling, skating, riding, etc. Features - Color: Sky-blue. - Material: ABS And . - Size: - Head Circumference: 49-53cm. - With the adjustment twist,it can adjust head circumference size. - Ruggedness not brittle to withstand the high intensity, strong density synthesis makes riding safer. - It is a good choice as a gift for Children’s Day, Christmas, Birthday,etc. - multi-sports with hard outer shell for added protection. - This is the very targeted for sports. To be cool not only for your scooter, but also roller-skating and so on. Package list: 2 x Child Adult