1Spill Free: The coolant filler kit funnels cooling fluids, such as radiator coolant and oil, cleanly into any vehicle, preventing spills and trapped air during refills after a coolant flush. 2Multiple Funnels: The filling funnel kit contains 4 cap adapters, 5 filler neck adapters, 3 extensions, a stopper, and a transparent coolant funnel, more complete than others, practical and convenient for use. 3Various Scenes: The radiator coolant funnel kit is suitable for most vehicle, yacht and boat, convenient for use in different scenes. 4Durable Material: The cooling fluid bleeder adapter kit is made of durable and reliable material, high strength and wear resistant, ensuring the safety and reliability, having a long service time. 5Large Capacity: The cooling fluid funnel kit is designed with a larger capacity, can hold more coolant, saving the time of filling coolant, time and effort saving.