Vehicle engines are incredibly complex machines and it only takes one mistake somewhere in its workings to stop functioning like it should. Now you can accurately pin down those problems with the VViViD Automotive Stethoscope. Using the stainless steel probe, you can easily track down the sounds of water, oil, steam or air, even through tubes or metal engine block parts. The heavy duty construction and flexible rubber listening hoses are solidly build and will ensure years of flawless use.