Content: Comes with 2 rubber cones that don't need to be screwed into the head, can test compression on almost any engine.Professional: Manometer with two test pressures: 0 - 300 PSI / 0 - 21 kg/cm2.Convenient: Can be quickly tuned to your engine/car, get accurate readings in valves, piston rings, cylinder bores or cylinder head gaskets.High quality: drain valve with nickel-plated copper plating, anti-oxidation and corrosion. And with a rubber protection to prevent scratches.Universal: the gauge has all the fittings necessary to attach to any type of pressurized system. M10 thread is suitable for motorcycles, M12/M14/M18 threads are suitable for car.Can be quickly tuned to your engine/car, get accurate readings in valves, piston rings, pistons cylinder bores or head gaskets.Features:Unit Test / Mode: Bar, PSIMaterial: Metal, RubberBlack ColorSpecial Function: Get Accurate ReadingsDiameter of the manometer: 75 mmFour thread sizes: M10 x 1.0mm, M12 x 1.25mm, M14 x 1.25mm, M18 x 1.5mmTotal Hose Length: 440 mmPressure tube length: 150 mmBent pressure tube length: 160mmPackage Contents:1 x Compression Tester1 x Hose4 x Wire< p>1 x straight line pressure hose1 x elbow pressure hose1 x plastic case