The product is a set of 7 Snap-on wrenches and a double box end set, various sizes, with a patent number of 3273430. These wrenches are designed for SAE measurement and have a 12-point drive type. The set does not come with a warranty, but it is a high-quality product from the renowned brand Snap-on. Perfect for automotive use, this set includes various sizes to suit different needs and provides a reliable solution for working on vehicles. Used 7, 5/16,5/16 and 3/8, 5/8, 1 and 1/16 and 13/16, 11/16 and 3/4. No returns