Features STAINLESS STEEL: These air hose fittings are made of stainless steel, with coating, rust and corrosion resistance, and have a long service life. 360 DEGREE BALL HEAD: These air fittings are spherical joint design, support 360 degree rotation to prevent hose twisting and increase flexibility. GOOD SEALING: These fittings are pre coated with sealant on the male threads to reduce air leakage and do not require tape wrapping and sealing. SPECIFICATIONS: Includes 3pcs male and 3pcs female thread air couplers, with standard 1/4 inch NPT specification to meet various connection needs. APPLICABLE RANGE: These quick connect fittings are suitable for pneumatic tools and most common air hoses, making them easy to install and replace. Specification: Item Type: Air Hose Fittings Product Material: Stainless Steel Product Feature: Ball head rotation, prevent hose kinks and increase flexibility, suitable for pneumatic tool, reduce wrist and air hose strain, help to improve labor efficiency. Package List:6 x Air Hose Fittings Package List 6 x Air Hose Fittings