Keep your little one protected with the Marvel's Avengers Child Multi-Sport Helmet! The Bell Sports Marvel's Avengers Boys Child Multi-Sport Helmet Features: With all the Avengers, you'll be ready for an amazing adventure! Fits head sizes 51-54 Centimeter Hardshell construction for dual certification, CPSC Bike and ASTM F1492-08 Skate compliant. Top and rear vents keep you cool at the park on the trails. Marvel's Avengers graphics and vivid colors. Recommended for ages 5 to 8 years. Avengers Assemble! We have a great selection of all your Marvel Avengers needs from action figures, games, electronics, role play and more right here !