Dear，Pls leave a massage to tell us what design (Color) do you want.thank you.

Auto diagnostic tools Car Engine Block Stethoscope Automotive Tools Auto Repair tools Diagnostic tool Engine Analyzer Speciication: This mechanics sonar scope helps isolate engine problems by letting you 'hear' inside engine.Quality chromed-steel construction with soft PVC hose and probeDetectable frequency range: 10HZ--10KHZAnti-shocked designTwo Probes included: the longer one is 200mm long，the shorter other is 80mm long，the probe diameters are the same， 4mm. packaging 1 * 1 set stethoscope tools