Evans BD20MX1W Marching Bass Drumhead - White ZA BF Consumer Audio the swivel arm can be

the swivel arm can be repositioned by loosening the friction braking wheel with interchangeable adapters for an integrated PCS tip or 3/8" thread

Foldable and light weight for easy transport

Equalization High Boost EQ: +10 dB at 13 kHz

The fluid head is equipped with a sliding plate with a sliding range of +/- 1

Evans BD20MX1W Marching Bass Drumhead - White ZA BF Consumer Audio the swivel arm can beEVANS MX1 White Marching bass drumheads produce a bright, focused, and full tone with a single ply or 10mil film. The MX series contains a unique tone damping system that can be manipulated by applying the included felt arcs to enhance articulation and focus low end for both indoor and outdoor marching. Ideal for: Indoor Marching, Outdoor Marching Features at a Glance: Made with a single ply of 10mil film Bright and full tone Unique modular foam arc