The 3 Legged Thing Switch Clamp is a universal dual stage switch mechanism for Arca Swiss compatible release plates. Compatible with most modern ball-heads, the Switch Clamp is adaptable for left and right hand use, and adjustable to fit different plate profiles. Features two security hollows for compatibility with Arca-style release plates that have security pins.
The Switch Clamp can be also attached directly to any 3/8" thread device.
Here is a short video of the Switch Clamp, as seen on the 3LT AirHed Switch Ball-head