Product description: Condition: new Brand: ROCKBROS Color: orange-blue-black Size: M Child's head circumference: M: 53-58 cm Weight: M: 425 g Material: made of PC + EPS foam (PC - polycarbonate, EPS - polystyrene) Product characteristics: 2 in 1 design: The chin guard can be easily removed with a push of a button, allowing you to use the helmet without it. The extended sun visor provides better eye protection. Excellent protection: The impact-resistant PC outer shell and EPS body make the helmet lightweight and effectively reduce vibration. A soft inner mat absorbs sweat and protects the head from impact. Breathable: Thanks to 12 large vents, the helmet is highly breathable. The chin guard is removable for added freshness when it's hot. Adjustable: Thanks to the 360° adjustable handlebar at the back, you can quickly adjust the size. Simply turn the button on the back of the helmet to the desired circumference. Multifunctional: The ROCKBROS full-face helmet for children is suitable for most children's activities, such as bicycles, balance bikes, scooters, roller skates, etc.