The product is a set of 4 stud puller wrenches in sizes 12MM, 10MM, 8MM, and 6MM. Each tool is designed specifically for removing stubborn nuts and bolts with ease. The 1/2 inch drive size ensures compatibility with a wide range of automotive components, making it an essential addition to any mechanic's toolbox. The high-quality construction and durable design of these tools make them reliable for use in various automotive repair and maintenance tasks.