The Gunson 77133 Timing Light with Advance Feature is a high-quality garage equipment tool designed for accurately timing engine functions. Made by the reputable brand Gunson in the United Kingdom, this unit is a single item that weighs 0.708 kg and has dimensions of 301mm in height, 239mm in width, and 82mm in depth. It features the advance feature for added convenience and is a must-have for any garage or workshop. With its precise timing capabilities and durable construction, the Gunson 77133 Timing Light is a reliable tool for vehicle maintenance and troubleshooting.