The telescopic runners allow baking trays, baking & roasting racks and Gourmet oven dishes to be pulled clear of the cooking compartment and held securely in any position. This allows you, for example, to baste or turn a roast conveniently outside the hot oven without the risk of getting burned. On FlexiClip telescopic runners you can also insert or place trays, racks and casserole dishes individually and easily on a different level.