The Frigidaire Dryer 134398600 Rotary Switch is designed for use with Frigidaire dryers and features a black plastic construction. It includes a temperature switch with 7-terminals and a "D" stem for selecting the heat settings. This built-in/integrated electric switch is suitable for vented dryers and spin dryers, providing a convenient control option for adjusting the dryer's heat output. With a compact size of 1-5 inches in depth, width, and height, this Frigidaire rotary switch is a compatible part for select models, offering a reliable solution for maintaining proper dryer functionality.