Excerpt: This seemed the best solution to use the Rode VideoMic on a boom. Metal 3/8" threaded insert in base. (Don't forget a 5/8" to 3/8" adapter, if your boom is 5/8" thread.) No need to use tape to attach to boom. Slot for shoe mount is open in front, closed in the rear. I turned this grip around when using overhead on mic boom, so mic couldn't fall out of the slot, even if shoe mount locking nut loosened. Product seems sturdy, very useful. Worth the money.