exclusky kids helmets for bike/skate/multi-sport lightweight adjustable 50-57cm(ages 5-13) exclusky child/youth(<b>ages 5-13</b>) helmet in sports of biking,skating,scooter,roller,etc. <br><br><b>material</b>: eps& in-mold eps shell <br><b>sizing</b>: 19.68"-22.44"(50-57cm) <br><br><b>package</b>: 1 x helmet with visor <br><br><b>warranty</b> <br>if you find this helmet gets quality problem within 180 days after you purchase,we are responsible for replacement for free or refund fully.