Used about three times a week for about six months. There are scratches on the outside in various places. There are some torn parts inside. Please check the photos. I forgot the size when I bought it. I think it's probably M. There is a photo with a measuring tape, which is a rough measurement. Please check it. PRO-TEC skateboard helmet in matte black, with a breathable design. - Brand: PRO-TEC - Color: Matte Black - Internal structure: Padded - Ventilation holes: Multiple ventilation holes Thank you for viewing. Dance Skateboard bmx