Add up to six small instruments to your drum kit. The Gibraltar 3-post, 12 Accessory Mount & Clamp features three 9.5mm knurled posts on the top and bottom of the main bar. This allows you to mount up to 6 small percussion instruments such as cowbells, chimes, blocks and many more. The Gibraltar 3-post, 12 Accessory Mount & Clamp mounts to any existing cymbal stand and can be easily adjusted for optimal positioning.