IKK GR-335 Bar Gauge, Precision Tire Gauge, Ito Metal Industry, Model: GR-335, Measurement Range: 100-420 kPa, Total Length: 4.5 inches (115 mm), Weight: 1.3 oz (36 g), This is a low price pencil type that is used for 2 wheels. Ito Metal Industrial Precision Air Gauge This pen type is convenient to carry and can be inserted into the chest. Can be used with 2 wheel and regular vehicles. (May not be usable depending on the shape of the valve) Manufacturer: Ito Metal Industries, Made in Japan.