The GE Rack carrier and roller kit is for dishwashers. It is a high-quality replacement part, made of high-quality materials, and fully tested to ensure long-term effective operation. This roller is for the right side of the dish rack; the left side is sold separately. because it is made of plastic and may crack or break. This is an OEM part from the manufacturer. We will always respond to any questions, even if it is just one email, within 12 hours.