This is tested and working great! There is an extra piece pictured. I'm not exactly sure what it's for. This Crock-Pot 3.5 Qt Slow Cooker SCCPMD2-CH is a must-have for any kitchen. With its electric power source and 180 W power, it can cook your meals to perfection. This slow cooker comes in a stylish black, gray, silver, gunmetal, and pewter color range. The stainless steel material ensures durability and longevity. It has a 3.5 qt capacity and comes with a pot, lid, and base. This portable and dishwasher safe slow cooker has three settings/programs and features a keep warm function. The charcoal gray finish adds a touch of elegance to your kitchen. This Crock-Pot is a perfect addition to your kitchen and will make your cooking experience pleasant and effortless.