The product is a set of 6 Mack push rods, specifically designed for Mack engines. These push rods are used in the valvetrain system to control the movement of the valves and ensure proper engine performance. The manufacturer part number for these push rods is 369GC237A. The product is described as new old stock, meaning it is a new item that has been in storage for a period of time but is still in good condition.