This image shows a close-up of the locking hub installed inside the cabinet. The "pin," not photographed, is attached to the backside of the door.

What I particularly like about this system is the ease of installation. It's based on the same low-voltage system that Häfele uses for its halogen lights. So all the components, from transformer and wiring to mounting blocks and switches, snap together easily. The wires are small and easy to conceal.

Photo by Jacob Nolte