Evans 20" EMAD Onyx Black Bass Drum Head

20" EMAD Onyx Black Bass Drum Head Single ply head The EMAD Onyx utilizes a single ply of 10-mil black film with an improved EMAD damping ring and a micro-clear coated head that produces an extra dark sound while delivering additional punch Thickness: 0.25 Revolutionary head design with variable and interchangeable damping rings which are externally mounted Colour: Black available since June 2009 Item number 230968 sales unit 1 piece(s) Colour Black Type Of Head Single Ply Finish Textured, Coated Damper Ring Yes Dot No Resonance Hole No