Evans MX2 White Marching Bass Drum Heads are top quality, versatile heads for your marching bass drum. MX2 heads feature a unique series of felt dampening arcs that can be adjusted to give you more or less overtones and resonance, as the musical situation calls for it. These Marching Drum Bass Heads are made from 2 plies of 7.5-mil film, which give you superior durability, articulation and focus from your marching bass drum. These heads are proudly manufactured by Evans right here in the USA, and you can find them at the Drum Center of Portsmouth.