Range Kleen 505 Metal Burner Kovers Round Black, 2 small and 2 large

I like everything that I ordered and I received it fast.

I was very worried about these considering so many poor reviews but I recently got a cast iron pan and use it daily and I've been trying to find a solution to having grease spray all over and into other drip pans. I don't consider these to be 'thin'. As you can see in the photos, I put a heavy wooden knife block set on top of one and it didn't bend or buckle under the weight. So now I'll just have to clean these instead of having to disassemble the entire stove every day. Don't worry--all 4 are black. THANK YOU! P.S. These should be removed when you're using a burner obviously and you should remove the one over the oven vent (should be the small one in the upper right side) when you use the oven.