A quick-release system based on standard ¼-20 camera mounting screws. I've included files for screwing directly into the plastic and also holes sized for ¼-20 threaded inserts. I highly recommend installing threaded inserts though. Assembly is very easy using only 2 ¼-20 x ½" button head machine screws. Run one screw through the pivot and then through the lever and into the base. Stick the other screw through the platen into whatever you intend to mount. Both halves are also compatible with some common Chinese tripods and quick release mounts found on Amazon and the like.