The compact design of these fittings saves space and makes installation and use more convenient. The internal thread connectors are well designed, respectively. They are easy to install and can be used in tight spaces. The fittings are also easy to disassemble and reassemble, making maintenance and repair . Features -Color:Black -Material:Resin, copper -Size:2.70X2.30X1.10cm/1.06X0.90X0.43in -Compact Installation: These pneumatic air hose quick connect fittings are designed for easy installation in tight spaces -Efficient Maintenance: The easy disassembly and reassembly feature of these fittings ensures efficient maintenance and repair, saving time and effortWide Compatibility: These fittings are compatible with a wide range of air hoses and connectors, providing versatility and convenience in various pneumatic applications -Reliable Performance: Widely used in air compressors, air tools, and other pneumatic systems, these fittings offer reliable and efficient performance -Sturdy Packaging: The sturdy and box packaging ensures safe shipping and storage of these pneumatic air hose quick connect fittings Package list: 10 x connectors