Sedici Helmet Donut Grab a Sedici Helmet Donut for helmet service, helmet storage or simply showing-off your fresh, new lid. A helmet donut serves as a protective, anti-roll pad that safely secures your helmet while upside-down to prevent scuffing and allows for easy maintenance of the helmet liner, padding, Bluetooth device, etc. Features: Universal application helmet donut Made of soft urethane material One size fits most helmets