Outbound Lighting Notched Helmet Mount Base Description: This Outbound Notched Helmet Mount Base attaches to bicycle helmets featuring a center-line peak or "notch" via an adhesive pad and allows for the mounting of the Outbound Lighting Hangover helmet light. Features: Helmet mount base for Outbound Lighting Hangover lights Fits helmets that come to a point at the center Attaches via heavy duty adhesive pad