The helmet features multiple ventilation holes, which effectively dissipates heat to say goodbye to stuffy feeling, provides you with breathable and comfortable wearing experience. Designed with anti-deformation PC shell, integrated molding process, high density EPS inner and light weight, this helmet is sweat absorbent to keep head dry and effectively absorbs the impact force to play a good buffering role to better protect children's head from getting injured. Made of high quality PC and EPS, it is lightweight, wear-resistant and durable to use. The head circumference is 48-55cm. The kids helmet is designed for kids safety protection, especially for biking, cycling, ice and roller cycling skating, skateboard, BMX and other sports. Suitable for both boys and girls. Item Name: Kids Helmet Material: PC, EPS Features: Colorful, Impact Resistant, Breathable Size Details: Head Circumference: 48cm-55cm/18.9"-21.65" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Kids Helmet