Luxglide Telescopic Racks: Telescopic Racks Use Ball Bearing Rack Guides For An Effortless And Luxurious Glide In And Out Of The Oven Full Extension: Ball Bearing Rack Guides Allow The Racks To Extend Beyond The Oven Cavity Without Tipping Over And Adjusts To Fit Different Rack Support Levels Supports Heavy Dishes: Handle Even The Heaviest Dishes. Like A Juicy Roasted Turkey. Smoothly And Easily Without A Chance Of Tipping Over