Knobs are parts attached to an oven to control its operations, such as temperature, cooking time, and oven door opening. The GE oven knobs are typically made of plastic, metal, or glass and come in various colors and designs. GE oven knobs are crucial in using the oven efficiently, helping to ensure that the food is cooked at the right temperature for the right amount of time. Different oven models may have different styles and numbers of knobs.