The Smooth White Ambassador marching bass drumhead is renowned for its classic open tone, projection and attack. Incredible sound, consistency and reliability is what makes the Remo Smooth White Ambassador the OEM (Original Equipment Manufacturer) drumhead of choice for the vast majority of marching bass drum manufacturers. Constructed of single ply high-strength 10-mil film, the Smooth White Ambassador is versatile enough for all playing styles, from marching band to drum corps, indoor to outdoor.