Composite series Kelly SHU mounts are incredibly strong and durable. They are made using high-density reinforced compounds and are injection molded under a tremendous amount of pressure. The Kelly SHU Composite accepts any standard kick drum microphone that has a threaded base or mic clip. The Kelly SHU Composite series also gives you your choice of our exclusive internal and external installation options, both within the same product. All the installation components that ship with the Composite series mounts are the same as is included with the Kelly SHU Pro Systems. The System requires NO DRILLING for installation.