The Superlux HM-25 is a high quality fully adjustable drum microphone clamp. The rim clamp has a lockable screw to attach to the drum rim securely. Feature a flexible rubber microphone clip to fit most microphones. The HM-25 is a genuine professional microphone holder with a nice shape and sturdy structure. The holder has a cone-shaped inside to hold the microphone tightly, and the strong polypropylene hander has a low conductivity for noise vibration.