?CAUTION?The 1/4'' thread / 6mm OD thread size is only suitable for battery powered portable pumps with the corresponding thread, please check if it is compatible with your equipment before purchasing to avoid any inconvenience. ?NO AIR LEAKING?Open flow 90 degree thumb-press air chuck, just put it onto tire valve stem and press to lock, excellent lock-on tight seal make sure no annoying air leaking, brings you an easy and quick hands-free inflation. ?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. ?THREAD SPECIFICATION?The OD 1/4''/6mm thread size allows for direct connection to most battery operated portable inflators, rather than adding a hose for extension, eliminating the possibility of air leaks and making it easier. Its portable and lightweight make it a good tool for daily use. ?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.