Description: [Premium Material]This stylish children's bicycle helmet is made of quality PP foam and PC board, featuring an integrated lightweight design. It offers great impact and shock protection, as well as cushioning effects. [Ventilated & Comfortable Wear]The streamlined structure of this children skateboarding helmet includes ventilation holes to keep the head fresh and comfortable for long periods of wear. [Adjustable Fit]Suitable for head circumferences between 52cm-58cm/20.47 inches-22.83 inches, this children's bicycle helmet features adjustable side straps and chin pads for a secure fit. [Suitable For]The sporting helmet is suitable for kids 3-10 years old, with its lightweight, breathable and comfortable design that effectively reduces wind resistance. [Wide Application]This fashionable bicycle helmet is ideal for outdoor travel, cycling, skateboarding, etc. Also a great gift choice for boys and girls on birthdays, holidays, festivals, etc. Specification: Material: PC PP Size Chart: Suitable for Head Circumference 52cm-58cm/20.47inch-22.83inch Package Includes: 1 Kids Bike Helmet Note: Please allow slightly errors due to manual measurement and different monitors.