[Drip Irrigation Connector]: You will get 200 black direct heads. The drip irrigation connector can effectively save the water needed for irrigation, easily carry water anywhere, bring more convenience to your life. [for 4/7" tube] : suitable for connecting tubes with inner diameter of 4mm and outer diameter of 7mm. Our drip irrigation accessories help build a practical and useful irrigation system that makes gardening more convenient and efficient. [Easy to install]: These drip irrigation connectors are easy to install without any additional tools. Simply push the tube securely onto the hoop for a super tight fit that won't leak. If convenient, you can also use a heat gun or hair dryer to soften the end of the tube before inserting it. [Equipment]: The durable irrigation right joint is Made of environmentally friendly materials, high strength and chemical resistant has the advantage of waterproof anti-corrosion, durable, lightweight and not deformed, easy and longer service life. < p>[Wide Application]: Drip irrigation barbed connector for 4/7mm pipes helps build a maintenance-free irrigation system. Ideal for gardens, greenhouses, pergolas, terraces and other agricultural irrigation systems.