Oven Mate Extra-Thick Teflon Oven Liner, 500 x 400 mm, Black. This superior quality liner is non-stick and reusable, being extra thick and larger than other brands, it is designed to last longer. The Teflon oven liner does not crease or wrinkle and is dishwasher safe. It is also suitable for lining baking trays for sugar or chocolate treats or for rolling pastry.