The image shows a close-up of a small black knob with a red center. The knob appears to be made of plastic and is located in the center of a white plastic container. The container has a small hole in the middle, which is likely where the knob is located. There is a label on the right side of the container with a barcode and some text on it. The background is blurred, but it seems to be a part of a larger machine or equipment.