All our Atphfety girls/boys bike helmet comes with a shock-absorbing expanded polystyrene shell (EPS) to drastically reduce the impact of a collision or fall.<br><br><b>Adjustable Size</b><br><br>These skate helmets has fully adjustable regulator keeps the helmet fit for them perfectly. Adjust the strap and side buckle when feeling too tight or too loose, and they can wear it comfortably.<br><br><b>Safety Light </b><br><br>To enhance the safety of your kids, Atphfety helmet is built with a security light at the back of the helmet. This will notify others to watch out for your kid!<br><br><b>Lightable and Comfortable</b><br><br>Super lightweight 200g(7 OZ) ,bring the head light riding experience;and the helmet liner use Velcro adhesive ,can be removable and washable<br><br><b>Cool Superhero Design</b><br><br>Cool Bat/ Spider/Captain Design,your kids will love it at first sight,perfect birthday and chirstmas gift for them<br><br> <b>Item Specifics:</b><br> Age: Kids / Child <br> Color: Spider-RBW;Captain-BRW;Bat-YB<br> Material: EPS foam, PVC & PC<br> Size : 50 cm - 54cm / （19.7"-21.2" ）with Adjustable Dial<br> Weight:200g<br>CE Certified<br><br> <b>Suitable Sports:</b><br> Skateboarding<br> Skateboard<br> Scooter<br> Skating<br> Inline & Roller Skate<br> Cycling<br> Bicycle<br> Mountain<br> BMX Biking<br> Two wheel electric Board<br> Electric Self-balancing board<br> Other outdoor or indoor activities which need impact protection gear