Marching CymbalsThe traditional pool of marching music often are called Clash-basin or crash cymbals. They can be found in any orchestra. Marching Cymbals are always in pairs and come with a loop in your hands and played by clashing or sliding movements. Are clash pool it in a diameter of 12 "to 21". As a general rule, the larger the diameter the more voluminous and lower the overall sound.