Item Name: Leakage Tester Diagnostic Compressometer Tool Compression Tester Kit. Includes 14mm and 18mm adaptersGauge will hold pressure s and has quick push button release valveIncludes 2 rubber cones ends for quick check (no need to thread into head)Fittings: M10, M12, M14, M18 (Male, With "O" Ring)3" Gauge has dual color scale with 0-300 PSI, 0-20 kPaAdapters for a wide number of vehiclesPackage Include:Petrol Engine Pressure Gauge Tester Kit SetNote:1.Please allow 1-2cm error due to manual measurement.