Coolant Filling Kit: 5 direct fit radiator adapters, 4 caps, 2 45 degree elbows, 1 5 inch straight extension, 1 fluid stopper, 1 fluid tester, and 1 clear funnel Easy to Use: This spill free funnel kit makes coolant filling simple; Select the correct adapter, attach the funnel, and fill; Adapters fit most passenger vehicles and light trucks Don’t Get Stuck: The 45 degree angled elbows as well as the 5 inch straight extension in the coolant funnel kit allow you to access hard to reach areas Mess Free Coolant Refill: The fluid stopper prevents drips and spills when removing the funnel from the filler neck; The adapter gaskets also prevent fluid leakage Test the Waters: The included coolant tester in this spill proof coolant filling kit quickly provides the freezing point of glycol-based coolants