Yamaha Band and Orchestra 24x14 8200 Field Corp Series Bass DrumsEasy consistent tuningThese bass drums also feature a 5.4 mm steel tension rod to provide easy, consistent tuning without unnecessary weight.Lug casing developed strictly for marching drumsThe toms and bass drums are both equipped with the first lug casing in Yamaha history developed strictly for marching drums, making Yamaha drums lighter than any competition level drums on the market and ideal for high school, college and drum corps use.