This part is the replacement wire whip for your stand mixer. It is made of metal and is approximately 7 inches from top to bottom, and 5 inches from side to side. The wire whip is an attachment which rotates and allows your stand mixer to whip items. The main reason to replace the wire whip is if your current whip is broken, or if your mixer does not currently have a wire whip attachment. This part is silver in color and is sold individually. It is an authentic OEM part.