The 18mm Opaque Banger from GEAR Premium® is made of quartz and includes a flat top design with an opaque bottom for faster heating and better heat retention. Feel the GEAR Premium® difference and order one today! Product Features: - Made of quartz - Flat top design - Opaque bucket base for faster heating and better heat retention 1 x 18mm Male 45 Degree Opaque Banger 1 x GEAR Premium® Box