1. Material: Rubber + plastic + stainless steel 2. This mechanics sonar scope helps isolate engine problems by letting you "hear" inside engine. 3. Super sensitive ear pieces & probe 4. Efectively locates trouble spots within engine block 5. Quickly locate the source of engine noise such as piston slap, worn gears and bearings, damaged valves, water pump failure and blown gaskets. 6. Also useful for tracking down dashboard rattles and squeaks.
