This mount is designed for the small mini pedal switch found at MakersMakingChange.org. It mounts to any standard camera adapter with a bolt through the 1/4"-20 x 9/16" T-nut insert. Here is a video clip with more information. https://www.youtube.com/watch?v=_fH-vgqx3uw&t=8s This mount base should be used in conjunction with a mount arm such as the Ablenet Universal Mounting System. **$10 Replacement Cost