These are the Neff Z11SZ80X0 Seamless Combination Strips, finished in stainless steel to match your Neff N70 or N90 series Slide & Hide oven this accessory attaches seamlessly 60cm single ovens with 29cm warming drawer.
These are compatible only with N70 & N90 series Neff ovens and Neff Warming Drawers N17HH20N0B only.
See the video below for an explanation of exactly how these strips work.