ROCKBROS Kids Bike Helmet Toddler Full Face Helmet Detachable Ultralight Mountain Bike Chin Guard Cycling Helmet <br> Product Description:<br> Material: PC+EPS <br> Weight: About 380g<br> Size S:19.7-21.3inch(50-54cm) M:21.3-22.8inch(54-58cm) <br> Four Colour: Black Orange /Black Titanium/Orange Yellow/Pink Purple<br> Product Features:<br> 1.Safety Kids Bike Helmet: Our child’s helmet made of Durable hard PC shell and high-density EPS foam,removable soft inner padding, multiple protection & shock absorption.<br> 2.Lightweight & Breathable: This bike helmet design with 12 large vents, use breathable and comfortable foam material<br> 3.2 IN 1 Detachable Helmet: ROCK BROS Kids Cycling Helmet can free conversion between half helmet and full face helmet at any time<br> 4.Upgrade Adjustable System: There is 360 °adjustable buckle at the back, you can quickly adjust the size, the nylon belts are also easy to adjust<br> 5.Suitable for Multiple Scene: Our full face helmet will play great protective function while your child are cycling, skating skateboarding, roller skating, inline skate, scooter, rollerblading, longboard and two wheel electronic board,minibike riding and more sports<br>