The Draper Expert Universal Cooling System Pressure Test Kit includes five pieces with cone adaptor sizes ranging from 17-24mm to 47-48.5mm. Designed for automotive use, this kit is ideal for diagnosing issues with cooling systems. Manufactured by Draper Expert, this product ensures quality and reliability in testing and troubleshooting vehicle components. Perfect for garage equipment and tools, this pressure test kit is a valuable addition for any mechanic or car enthusiast looking to maintain and repair cooling systems effectively.