This vintage Proto double box ratcheting wrench is a must-have for any automotive tool collector. With a size of 1/4in. and a drive type of 6 point, this wrench is perfect for all your ratcheting needs. The wrench features a System of Measurement of SAE and is a single item, making it easy to add to your toolbox. The manufacturer part number of this wrench is 1191 and it is a USA Model 1191. The wrench is made by Proto, a trusted brand in the automotive tool industry. This wrench is ideal for those who are looking for a high-quality, durable wrench that will stand the test of time.