Built with a single ply of Evans ShockWeave Mesh, combined with exceptional Kinetic Transfer Foam technology, dB One low volume bass drumheads offer quiet drumming, while still maintaining true acoustic tone and feel. Evans dB One bass heads are a superior mesh drumhead, engineered to transfer impact energy into sonic vibration flawlessly. Thanks to specially designed Impact Patches, which reinforce the striking surface while enhancing the audible attack and articulation of each hit, you can practice naturally and quietly, whenever and wherever you want.