1/4" High Pressure Air Duster Compressor Blow Gun Pistol Type Pneumatic Cleaning Tool Features: Made of material, it will not loose or rust, not easy to break, long service time. Pistol type design, convenient and easy to hold. Strong wind blowing, low consumption and energy-saving.  The air outlet is very concentrated, strong with large flow rate. Special designed for cleaning the dust of precision machinery, clocks and instruments. Specification: Material: Aluminum alloy  Weight: 166g/5.9oz Model: YC-989 Working Pressure: 0.62mpa Air Inlet Size: 1/4" Air Duster Gun Size: Approx. 13.5 x 9.5cm/5.3 x 3.7inch Package List: 1 x Air Duster Gun 1 x Extension Nozzle Note: 1. Please allow slight error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 3.The thread glue used at the connection is relatively tight in order to seal and prevent air leakage. When replacing, blow it with a hot air gun, and the glue is softened and it is easy to unscrew. The thread is metric, you need to replace the corresponding metric connector. If you use American or European style, it may not be fully tightened, but it can be used normally, and please note that the Japanese-style connector should be connected (the domestic is Japanese, and there are many countries in the world.) , the corresponding connector should also be Japanese-style;4.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.