The P-40 is a 5.88" long, double dovetail, Arca-Swiss style
quick-release plate. It is used to connect a camera lens, fitted with a
rotation collar and tripod mounting foot, to a compatible quick-release
clamp. Wimberley plates are compatible with most Arca-Swiss style
quick-release clamps, such as those made by Wimberley, Really Right
Stuff, Kirk Enterprises, Markins, LL Rue, Arca-Swiss*, Foba, Graf and
others *The safety-stop security feature of this plate does not work
when used with an Arca-Swiss "double-decker", multi-groove quick-release
clamp.
The plate does have wear from use (see photos) but functions flawlessly and has not been abused. Everything in the photos is included with the plate.
Good Luck!