The product is a set of 4 oxygen sensors designed for use in 2014-2019 Chevrolet Silverado 1500 trucks with 4.3L, 5.3L, and 6.2L engines. They are specifically manufactured by Mohano with a Manufacturer Part Number of QPYC. The sensors are of the screw-in mounting style and include 2 upstream (front) sensors and 2 downstream (rear) sensors. They are direct fit sensors with a sensor type of Oxygen Sensor, ensuring compatibility with the specified vehicle models. The product also highlights the importance of matching plugs to ensure proper functioning.