Item Type: Air Hose Fittings_x000D_ Product Material: Stainless Steel_x000D_ Product Features: The ball head rotates to prevent hose twisting and increase flexibility. Perfect for pneumatic tool, reduces wrist and air hose strain, and helps improve labor efficiency. 1STAINLESS STEEL: These air hose fittings are made of stainless steel with coating, rust and corrosion resistance, and have a long service life. 2BALL JOINT: These fittings are ball joint rotation to prevent hose twisting, increase flexibility, and reduce strain on the wrist and air hose. 3GOOD SEALING: These fittings have pre applied sealant on the male thread to reduce air leakage and do not require tape wrapping and sealing. 4SPECIFICATIONS: Including 3 male thread and 3 female thread connectors, with 1/4in?18NPT specification to meet various connection needs. 5WIDE APPLICATION: These quick connect fittings are suitable for pneumatic tool, and used for most common air hose, easy to install and replace.6 x Air Hose Fittings