The Milton S-925 Pencil Tire Gauge 20-120 PSI is a precision measuring tool manufactured by Milton Industries in the United States. This single pencil gauge is designed for use on both front and rear tires, providing accurate readings between 20-120 PSI. It is a reliable and durable product for automotive maintenance and troubleshooting. Additionally, it is important to note that this product may contain chemicals known to the State of California to cause cancer and reproductive harm, as indicated by the California Prop 65 Warning.