Cooking & BakingHBN5451UC 27" Single Wall Oven500 Series - Stainless SteelHBN5451UC The Bosch Wall Oven Features Genuine European Convection and Heavy Metal Stainless Steel Knobs. Genuine European Convection for Even Baking Results on Multiple Racks. Heavy-Duty Metal Knobs Offer a Premium European Feel. Bosch Wall Ovens are Compatible with Most Competitors' Cutouts. The Wall Oven is Designed to be Installed Flush with your Cabinetry.