On-Stage DM50 Drum Rim Microphone Clamp Securely attaches to a drum rim; the reverse clamp design allows for easy tightening and removal Works with most flanged, die-cast and percussion rims and fits 6"-18" diameter drums with rims as tall as 1 3/8" Works with any 5/8"- 27 mic clip Isolation cylinders dampen unwanted vibrations Black powder coat finish