The product is a Worldwide 103010P R-14 Air Brake Relay Valve, which is a new old stock item. It is designed for use in commercial trucks and is a crucial component for ensuring proper air brake functionality. This product comes with a California Prop 65 Warning for cancer and reproductive harm, reflecting its potential health and safety implications. With the manufacturer part number 103010P, this air brake relay valve is a reliable and essential part for maintaining and repairing commercial truck braking systems.