This is a "Griddler" by Cuisinart model GR-4N(TK).
It is chrome and black with a dull grey on the bottom. This griddle/grill combo features 2 types of grill trays, a panini press, and a griddle tray. For both types of grill trays, there is a corresponding temperature knob. The griddle trays have a griddle cook know, with temps from 200-425 degrees Fahrenheit, and the panini press trays range from Warm-Sear. There is a middle knob that selects the type of tray you are cooking with. There is a release button on the top and bottom, so you can swap out the different trays with ease.
The griddle measures about 15" high when open. 13.5" long, 10" wide, 6.5" deep.
This item is in good pre-owned condition, tested and heats up.