More than 9,000 sold and counting, the ValvoMax Disposable Funnel is the cleanest, fastest, and easiest way to pour any fluid. Pop it open, pour fluid, and pitch it in the trash can when you're done anytime, anywhere. Perfect for cars, trucks, vans, boats, lawn garden, aviation, oil gas, heavy machinery, construction equipment, fleets, and more. Single use means it's always clean. Store them anywhere. Folds flat, perfect for your glovebox.. One-time use ensures particles don't get inside engine. Perfect for cars, boats, RV's, commercial vehicles, lawn garden. No more cleaning dirty funnels. Works for gas, oil, transmission, power steering, coolant, or any other fluid.