With non stick oven liner you'll never have to clean the bottom of your oven! Oven liner covers the base of an electric oven to end baked-on cleanups. Pie spills, grease, cheese glide off. Oven spill guard wipes clean or zip tan mat in the dishwasher. Fits bottom of 30" oven. For gas ovens, place on bottom rack. Trim oven liner to fit RV ovens and toaster ovens.