Add a crash, splash, microphone, or percussion toy to your kit by just using a cymbal L arm. The SC-CLRA is a cymbal L arm, with ratchet assembly that is designed to attach to a 12.7mm boom arm. With two tilter adjustment points, use this accessory to mount an additional cymbal to your boom arm, or add a microphone to a 12.7mm post by couple with the SC-GMCMA.