X-BULL Rapid Tyre/Tire Deflator Air Deflators 4WDwith Pressure Gauge Valve Tool Pressure Range: 0-70psi Dial gauge diameter:about 6cm Heavy duty rubber hose length:about 29cm High pressure air pump nozzle diameter:about 9mm High pressure air pump nozzle inner diameter:about 7mm Includingair-bleed switch, press this switch to adjust to normal air pressure when the tyre pressure is too high. Self locking head, easy to connect Including shockproof rubber sleeve Air-bleed button Max. pressure: 70PSI Component: 1 PC Type Pressure Deflator Gauge 1 PC 4 Way 1 Valve Tool 4 PCS Valve Cap 1 PCS Operating Instruction Suitable for: trucks, motorcycles, most tires of bike,automobiles and any passenger vehicles. Usage instruction: Determine the proper pressure for your tires by checking the owner's manual or driver's side doorjamb placard. Check tire pressure before driving when tires are cold. Press check onto the tire stem. The air pressure of your tire will be displayed. Notes: For accuracy, check pressure when tires are cold. Pressure increases with heat. Tires can lose one ound per month under normal conditions. Proper tire pressure improves gas mileage, handling,braking and durability. To avoid the possibility of eye injury,eye protection must be worn when using this gauge. Do not exceed maximum pressure on gauge. Dropping or severe jarring may impair accuracy of gauge.