The product is a set of 20 Craftsman screwdrivers made of alloy steel in the standard (SAE) measurement system. Manufactured in the United States, these screwdrivers come with a lifetime manufacturer warranty. With the trusted Craftsman brand, this set is ideal for various home and garden projects requiring precise and reliable screwdriver tools. Made from high-quality material and backed by a lifetime warranty, this assortment of screwdrivers is a durable and long-lasting addition to any workshop or toolbox.