Specifications: This children's helmet has passed CPSC certification, and high-quality EPS and PVC materials can help reduce the risk of children being injured when riding a bicycle. It is lightweight, with an integrated sun visor and 14 vents, it is cool and comfortable to wear even in summer. The soft belt is adjustable, and the quick release buckle can firmly hold the helmet in place without scratching the child's face. Through adjustment, it can be easily adjusted in the vertical and horizontal directions, making it more suitable for toddlers and preschoolers. The beautiful and interesting design on the helmet makes your child fall in love with the bicycle, and there are many colors for your child to choose. It is suitable for head circumference of about 48-54cm, generally suitable for children aged 3-7. Item Name: Children Helmet Gender: Unisex Children Material: PVC Shell, Internal EPS Suitable for: Children Riding, Pulleys, Skateboards, etc. Technology: Non-Integral Molding Features: Comfortable to Wear, Adjustable, Lightweight, with Sun Visor Suitable Head Circumference: S: 48-52cm/18.89"-20.47"(Suitable for Children Aged 3-5 Years Old), M: 50-54cm/19.69"-21.26"(Suitable for Children Aged 5-7 Years Old) Size: 27cm x 25cm x 19cm/10.63" x 9.84" x 7.48" (Approx.) Notes: When measuring the head circumference, it should be 1cm above the child's ear, which is the widest position of the child's head. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Children Helmet