Description: - White bass drum head silent mute drum skin. - Aluminum metal frame, good silent performance. - Durable 2 ply - Can volume. - Suitable for beginners students practice. - Material:Aluminum Size Chart: 8inch Diameter: Approx.200mm/7.87inch 10inch Diameter: Approx.250mm/9.84inch 12inch Diameter: Approx.300mm/11.81inch 13inch Diameter: Approx.325mm/12.79inch 14inch Diameter: Approx.350mm/13.78inch 16inch Diameter: Approx.400mm/15.75inch Package Includes: 1 Piece Drum Head