This hub needs no tools to attach, just push on from the 90 degree side opening and twist until the hub snaps into an upright position, mounting slots open at the top and aligned parallel to the microphone shaft. Swing the clamp screw into position and tighten slightly to secure in a location of your liking. With two optional mounting slots you can attach any 2 Musician's Office Accessory you wish.
Fits Yorkville, Atlas and other similar Stands