Many of us are aware of the awkward to use lock lever tucked under the handle of most patio door handles. It always baffled me how users must reach inside the handle with their fingertips to flip the lever to lock or unlock the door. Half of the time "up" means locked and "down" means unlocked but at the next house you visit it is the opposite. The SmartTouch handle eliminates all of that. It operates in a "one-touch" manner, meaning the unlocking motion and opening motion are combined. The user simply pulls outward on the handle to unlock door, then pushes the handle inward to lock. No levers. The motion is simple, natural and intuitive.