Block Tester BT-700 Combustion Leak Test Kit in Hard Case - Made in USA<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Complete Combustion Leak Test Kit - Includes Fluid - Nothing More to Buy</li><li>When Fluid Turns From BLUE to YELLOW Combustion Leak is Present</li><li>Tests in seconds for combustion leaks caused by: Blown Head Gasket (BHG) Cracked Head or Block Pulled Bolts or Studs Warped Sealing Surfaces</li><li>Comes in Sturdy Plastic Case</li><li>Quality Tool Made in USA for over 45 years with Limited Lifetime Warranty</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51%2Bgxb03PTL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51Eq6iRG6ZL.jpg" noproxy>