Description: Comprehensive Set: The Radiator Funnel Kits includes 4 filling caps, 5 adapters, 2 45 elbows, a 5-inch extension tube, a transparent antifreeze funnel and a small funnel. This kit is suitable for most vehicle radiator or reservoirs. Sturdy Material: The funnel vent set is made of quality material that is resistant to high temperatures and wear, ensuring its durability and long service life. Unique Design: Unlike other ordinary funnels, our premium coolant funnel features a special rotating switch that can be gently turned off to effectively avoid spills or bubbles. The highly sealed interface and transparent funnel design allow for quick visual inspection of this coolant, saving time and hassle. Functionality: This Coolant filling funnel is suitable for venting air from the cooling system. After replacing a radiator, refilling it helps flush the cooling system and replace the radiator to ensure there are no air gaps in the cooling system. Product Dimensions & Package List: The filler funnel measures 157mmx105mm (please refer to size chart for specifics). This package includes a set of 15 pieces plus an additional small funnel (color random). ? Specification: Material:? Size Chart: 157mmx105mm/6.18inchx4.13inch Package Includes: 1x Radiator Coolant Filling Funnel Kits Note: Please allow slightly errors due to manual measurement and different monitors.