This is a children's bicycle helmet. It was used during regular bicycle practice. The size can be adjusted with the dial at the back, so you can easily adjust the fit to your child's head. There are small dents from use, but there are no major scratches or cracks, and it is generally in good condition. The inner cushion is removable and washable, so you can keep it clean. It's light and easy to wear, and you can still use it without any problems ^_^ For those who understand that this is a used item, thank you.