Amount of : Sufficient can satisfy your daily use and replacement demands. Features: the drip irrigation tube end cap fittings are suitable for 1/2 inches drip irrigation pipe joints; Water pressure: 30 PSI, grips the tube to a secure leak-proof connection, and the twist lock adds fixation to the tubing for a secure connection time. to use: just push the tube firmly into cap fitting and it will fit tightly without leaking, easy to install, no glue or other tools are required, if needed, you can soften of the tube with a hair dryer inserting it. material: the drip irrigation tube end cap fittings are made of plastic mainly, will not , can you a long-term service, will bring you a using experience. Wide applications: the drip irrigation pipe fittings are compatible with 16-17 mm drip irrigation pipes, can also be applied for elevated garden beds, residential, farm, greenhouse horticulture and agricultural watering applications. colour:Blue+black Material:plastic size:Approximately 7cm x 2.6cm x 1.6cm Package Contents: 12 x Drip irrigation tubing end cap plugs