Features Made of quality aluminum, stable and durable. Compact and convenient to use. The thread size is standard 1/4in, easy to install. It can help quickly release the air in pipe. Wide application in our daily life. Features: Made of quality aluminum, stable and durable. Compact and convenient to use. The thread size is standard 1/4in, easy to install. It can help quickly release the air in pipe. Wide application in our daily life. Specification: Condition: 100% Brand New Material: Aluminum  Color: Silver Medium: Air Thread Size: 1/4"BSPT Operating pressure: 0 to 10kgf/cm² Working Temperature: 0 to 70 Degrees Celsius Flow Direction: one-way Dimensions: Approx. 56 x 42 x 33mm / 2.2 x 1.6 x 1.3in Weight: Approx. 79g Packing List: 1 x Air Valve Package List