A:AnswerHi Andy. The element specs are: Right Front 6" (1,200 watts), Right Rear expandable 9" / 12" (1,800 / 3,000 watts), Left Front 6" (1,200 watts), and Left Rear 9" (3,200 watts). Thank you for the inquiry. ~ Anna
A:AnswerHey there, Cookie! After some research, we were able to see the knobs for this model are plastic. We hope this information was helpful to you. -Ciara
