This is an open lever for a microwave. It allows the microwave door to open when prompted. When you push on your door latch lever, it contacts the door latch assembly and releases the hooks that lock the door shut, allowing the door to open. If your door will not open, you may need to replace the open lever. You will need to remove the microwave cover and possibly the control panel, depending on your model, to access the door latch assembly. This part is white or off-white in color and measures approximately 4.5 inches long. This is an OEM part sourced directly from the manufacturer.