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