This is a Rawlings hardball helmet. It's a USA model, and the size is 52-60cm. It can be worn by children to adults, up to a large size. The cushion on the top of the head has been removed, so even I, who wears an O size, could use it. The color is metallic blue, which is quite eye-catching. The inner cushion is quite thick, so it has strong impact resistance. Thank you.