All Durable Metal DesignConstructed with high quality metal alloy for higher strength and durability, corrosion resistance and wear resistance, which is a perfect choice no matter for business or household use, will serve you faithfully for years. Widely ApplicableMaximum endurance pressure is up to 250PSI, ideal for conveniently inflating tires with valve, widely applicable for various vehicles, bikes, motorcycle, car, etc. If you are looking for a durable air chuck set, this one is for you. Hands Free & Leakage Solver This premium 90 degree locking air chuck with standard tire valve fine thread, was specially designed to resolve the annoying air leakage problem by converting tire inflator's screw-on (twist-on) air chuck to lock-on air chuck, just put it on tire valve stem and lock the clamp, then start your hands free tire inflation with its great sealing performance. Quick InflatingScrew on this premium air chuck adapter into your tire inflator's hose end, then clip this open flow tire chuck onto tire valve stem, strong hooks on and easy depress make it a perfect no air leaking and quick efficiency inflating. Ideal Tire Pump Hose ReplacementCompare to the "thread on" air chuck that most portable air compressors come with, Locking on replacement extend hose can lock on your tire valve easily. And you will never worry about inaccurate tire pressure due to leakage from pump nozzle when removing the chuck. Free your hands!