This Warming Drawer Heat Deflector must be used if your warming drawer is installed directly beneath a wall oven or a flush installation. This black deflector measures 27"W and protects the items inside the warming drawer from becoming overheated or damaged by the oven. The deflector is compatible with black warming drawer models WOES5027, WOED5027, and WOEC5027. Installing this accessory will require basic hand tools, some disassembly of the appliance and novice repair experience. You must unplug the appliance or shut off the house circuit breaker before installing this accessory.