heyous 20PCS 1/4 Inch Black Plastic Leak Proof Joint Plug Connect Tubing Pneumatic Cap Suitable for Low Pressure Hydraulic and Pneumatic Systems

["The package contains 20 pieces leak-proof joint plug.","High-pressure corrosion resistance, excellent corrosion resistance, extended service life.","Crafted from premium plastic materials, it is resistant to deformation, lightweight and durable.","Most commonly used in low-pressure hydraulic and pneumatic systems.","Quick-connect fittings offer effortless installation and removal, allowing pipes to be joined with a simple push. The release ring features an elliptical design for straightforward disassembly. With 360-degree rotation capability, pipe orientation can be easily adjusted post-installation."]