The Shure A56D mounts microphones on a drum or cymbal. It fits stand adapters with a 5/8-in, 27-thread. An L-adapter extension curves at a 90 angle for optimum microphone placement. The clamp fits drum rims measuring from 1/2-in. (12.7 mm) to 2 1/4 -in. (57.2 mm) in height, or on cymbal stands measuring from 3/8-in. (9.5 mm) to 1 1/8-in. (28.6 mm) in diameter.Shure's innovative A56D Microphone Drum Mount sets a new standard for versatility. Compact in design, the A56D can be used in a multitude of positions for accurate microphone placement. Live or in the studio, this universal clamp can be mounted virtually anywhere, including drum rims and racks, microphone stands, and cymbal stands. You'll reduce the stage clutter associated with traditional mic stand set-ups. Designed with captive parts to prevent the loss of individual pieces, the A56D mic mount is small, secure, and sturdy, and can be used with any standard microphone, making it a great tool for both musicians and sound engineers.