Realistic 3D Dino / Shark Design! your boys girls will love it at first sight Color printed PC Shell with shock-absorbing EPS foam is not only adorable but also resists impact The spikes using environmentally nice silica gel, safe for kids 2 sets of interchangeable pads with different thickness (7mm and 10mm)for custome fit 11 vents keep kid cool, even in hot summer. Super lightweight helmet for children to wear when they are cycling, skating or skateboarding 3 Size available,Size S suitable Infant toddler, kids, boy and girl,Please choose the helmet size according to the head circumference COMPLIANCE- Complies with U.S. Consumer Product Safety Commission Safety Standard for Bicycle Helmets for Persons Age 1 and Older (Extended Head Coverage) Product description Safety Helmet that Grow with Your Kids Color printed PC Shell with Realistic 3D Shark desgin and Thickend EPS Core ,Not only adroable but also adjustable safety & lightweight for kid's comfort wearing 3Size available for Infant,toddler,kids and youth Suitable for biking, cycling, skating, scooter and skateboarding THE BIKE HELMETS OF ATPHFETY! Why our customers love it? Good ventilation youth kids helmet Why our customers love it? Very lightweight spiderman theme helmet Why our customers love it? Bright color Kids Cycling Helmet Features: 14 Large air vent with integrated bug mesh Features: Multi Sports for Bicycle Scooter with LED Light Features: 20 Large vents with removable visor 2 Size： S:50-54 cm/19.7"-21.2" 2 Size： XS:47 cm - 52cm/18.5-20.5 inch 2 Size： S: 48-54 cm / 18.9"-21.3" M: 54-58 cm / 21.3"-22.8" S:50 cm - 54cm/19.7-21.2 inch M: 54-58 cm / 21.3"-22.8"