Description: Kid's full face helmet, integral moulding, stronger, shock resistance, lightweight, adjustabel fitting, foam padding for safety and comfort 3 layer protection, high intensity PC crashproof outer layer; and high density EPS shock-absorbing middle layer; removable, soft, damping and sweat-absorbent sponge liner inner Front and rear ventilation design, 16 large breathing hole, ventilated, breathable, more comfortable Extended hat, block sunlight, protect eyes; sweat-absorbing chin pad Detachable vented mouth protection, can use as half helmet or comprehensive protection full helmet Head circumference adjustable, with rear adjustment wheel for optimal fit It is great for cycling, biking, roller skating, skateboarding, riding a scooter, or other outdoor sports Specification: Material: High Intensity PC + High Density EPS Fits Head Perimeter: 50-53 cm / 19.7-20.9 inch, adjustable, fits most 3-12 years children Full Helmet Size (L x W x H): Approx. 30 x 18 x 23.5 cm / 11.81 x 7.09 x 9.25 inch Half Helmet Size (L x W x H): Approx. 27 x 18 x 17.5 cm / 10.63 x 7.09 x 6.89 inch Color: as the picture show Package Includes: 1 Piece Children Safety Helmet Note: Due to the differences between different monitors, the picture may not reflect the actual color. There is 2-3% difference according to manual measurement, please check the size carefully before you buy the item. Thanks!