This vintage Craftsman G Metric socket set includes four pieces: 18mm, 17mm, 15mm, and 14mm. The sockets feature a 6-point drive type and a chrome surface finish. They are made in the United States and come with a lifetime warranty. The set is perfect for any automotive or hand tool enthusiast and is a must-have for any toolbox. The sockets are designed with a standard socket type and a system of measurement in metric. They are manufactured with high-quality materials and are built to last. This socket set is a great addition to any collection and is sure to provide reliable and efficient performance.