22" X 15.7" plate comes with 1/4"-20 and 3/8"-16 female threads on the underside of the Tethermate mounts directly to a tripod or any equipment that comes with 1/4"-20 and 3/8"-16 male thread
Three mounting slots under the portable plate make it easy to connect additional accessories
The spring locking knob is included to keep the U shaped sliding plate in place
Round plate edges instead of sharp corners
Non-slip pad is included