The ring itself is very brittle after using. This will be the 3rd ring that I have had to replace because of this. I luv my oven but this ring needed to be made out of better material
The ER-3000 expander rings fit perfectly with my 2006 Jet Stream JS-4000 oven. The clips are plastic, whereas the expander rings I had for my 1992 Jet Stream oven were metal.
I was burned once when I took hold of the ring by the metal clip. It took only one time to do that. The plastic clips will prevent burnt fingers.
Believe the hype about the Jet Stream oven. With the one in 1992, I used two or three expander rings and cooked a 15 lb turkey to moist perfection in about two hours.