The Bi-Folding Sliding Barn Door Roller Hanger by Top Parts USA is a high-quality metal roller designed specifically for sliding doors. It features a sleek black color and is suitable for adding a smooth and easy-to-use function to your sliding door. This roller hanger does not come with a track or hardware, allowing you to customize your door hardware to your specific needs and preferences. Ideal for those looking to upgrade their home or building with a reliable and durable door roller.