Automotive Mechanics Stethoscope Engine Analyzer Car Diagnostic Tools Block Detector Tester Description: 1.This mechanics sonar scope helps isolate engine problems by letting you 'hear' inside engine.2.Quality chromed-steel construction with soft PVC hose and probe3.Detectable frequency range: 10HZ--10KHZ4.Anti-shocked design Specification:           Material Type       Rubber !#!amp!*!amp; Plastic !#!amp!*!amp; Stainless Steel           Item Weight       100 g           Special Features       Engine Analyzer           Item Type       Mechanical Testers    Note: 1.We provide clear pictures、 measurements where possible. Please check as much as possible to make sure the item is the one that you need.2.Please allow 0.1-0.5cm difference due to manual measurement. Package included: 1 x Automotive Stethoscope