?NOTE?Thread size OD 1/4''/6mm -- only applicable to certain battery-powered portable air pumps. ?EXTENSION TUBE?FCCAIRMS 24'' tire inflator hose covers more distance and provides more flexible space. replacement for the short inflator hose supplied with the portable inflator to solve the problem of holding the machine for a long time during inflation. ?LOCKINFLATE AIR CHUCK?Connects to snap-on chuck clamps, adopts self locking design for firmly stay in place. easy connection and disconnection, conducive to maintaining proper tire pressure, stable and safer. ?TIRE PRESSURE ADJUSTMENT?Saves you time and allows for much more accurate air inflation. designed to be a handy addition when needing to deflate air from overinflation without having to remove the pump each time. thumb the press and then get easy deflation. ?COMBINATION OF STRENGTH TOUGHNESS?This pump hose is made of stainless steel braided mesh and reinforced rubber hose. along with solid brass quick connect air chuck so that this tire inflator hose extension is not easy to break and wear. Frost resistant, high pressure resistant and long service life. Product description Lock On Air Chuck This premium 90 degree locking air chuck with standard tire valve fine thread, was specially designed to resolve. Presta Schrader Air Chuck Double mouth air chuck is universal for Presta valves and Schrader valves, no additional adapters required Lock On Air Chuck Simply press the locking clip on the air chuck, push the tire air chuck into the valve stem until it is clamped. Quick air release function Designed to be a handy addition when needing to deflate air from overinflation without having to remove the pump each time. thumb the press and then get easy deflation.