Cooking & BakingHBL5451UC 30" Single Wall Oven500 Series - Stainless SteelHBL5451UC 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 Premiun European Feel. Bosch Wall Ovens are Compatible with Most Competitors' Cutouts. The Wall Oven is Designed to be Installed Flush with your Cabinetry.