This replacement part is for a range, stove or oven. This knob is used to specify the settings desired on the oven while cooking or baking. The user might need a new knob if one is missing on the appliance, if the knob is stuck on a certain setting, if the knob itself is cracked or chipped, or if the plastic behind the knob is bent so that the knob will not stay on.This specific part is glossy, black, and made of hard plastic. This part is a genuine GE part and works with all major General Electric machines and brands. Installation is very simple and doesn't require any major tools or supplies. Most often the repair goes fairly quick as all that's needed is to pop the old knob off and make sure the new one is secure. This is an OEM part sourced directly from the manufacturer. It is sold individually. This part is compatible with machines from manufacturers like General Electric and and their brands like Hotpoint, RCA, and many others.