Our coolant filler kit funnels automotive fluids, such as radiator coolant and oil, cleanly into any vehicle. The long burp funnel prevents spills and trapped air during refills after a coolant flush. 4 Radiator Cap Adapters to Fit Most Passenger and Light Trucks Rotary Switch to Effectively Prevent Drips and Spills or Stop Overflow and Bubbles 5 Adapters, Two 45° Elbows, and Two 5“ Extensions; the Additional 5” Extension Rod Makes it Easy to Get to Difficult-To-Reach Areas Simply Select Correct Adapter, Thread Together, Attach the Funnel and Fill Threaded Design Makes Sure Liquid Won't Leak Handle for Easier Movement of the Funnel Embossed Scale to Easily Read and Monitor Fluid Level Holds up to 2 Liters of Fluid