Widely Used: Universal Fit, compatible with emergency and daily use for car, bicycle, motorcycle, truck, tire inflator. Easier to Use: The tire liner has a buckle closure. When you use it, you can press the closing buckle to lock the tire mouth, and the connection is more firm, no need to hold your hand, easy and quick inflation without hands.Inflation is easy and fast.Very easy to use. Great Performance Design: This universal external thread fitting has an outer diameter of 7.8mm, locking air chuck applicable to tire valves in the American and French standard tire valve, compatible with the internal thread of Twist-on tire valve fittings. These car tire Air Chuck and valve extensions are made of high-quality plastic and brass, wear-resistant and for a long service life. Energy Saving and Safe to Use: This inhaler air hose adapter is equipped with a deflation valve, to exhaust air from an overinflated tire and easily adjust the tire pressure. With a deflation valve at Press, air pressure is safer. Mr. safe to use!