Check the listing for details. NuWave Oven Pro Plus Amber Dome With Extender & Ring Model# 20633 New W/o Box. Color: Black, Condition: Open box, Made in China. Listed at 54.00 USD. This NuWave Oven Pro Plus is a versatile and energy efficient appliance that can cook a variety of dishes using conduction, convention, and infrared technology. The oven has a 15-inch diameter and comes with a lid, rack, extension ring, and base. It also features a digital timer, temperature control, drip tray, and is dishwasher safe. This model, 20633, is brand new without the box and has never been used. The oven is black in color, made of plastic, and manufactured in China. It is compliant with Energy Star standards and includes features like a baking oven, convection oven, and a timer/alarm. Whether you're cooking a quick meal or preparing a feast, the NuWave Oven Pro Plus is the perfect addition to any kitchen.