Good Quality PVC Material: The inflatable boat pressure gauge was made of good quality PVC material, solid, durable and corrosion resistant. Resist Abrasion: The external silica gel pressure gauge to resist abrasion for long time use. Pressure gauge showing up to 0.6 bar or 8.55 psi. Fit: The air pressure gauge designed to help ensure that inflatable kayaks, boats, surfboards, inflatable boats have safe and correct pressure. Application: The long hose adapters for kayak pressure gauges for pump valves and hoses. It can be used alone or connected to the air pump to monitor the air pressure during inflation. Material: PVC + Silica Gel Color: Black Measuring Range: 0-5 PSI Gauge Diameter: Approx. 3.8 cm / 1.50 inch Valve Diameter: Approx. 1.96 cm / 0.77 inch Weight: Approx. 80 g Packing List: 1 * Air Pump Pressure Gaugeladace