connection more strong and firm. Note:Please check the size carefully before purchasing. 1/4” Barbed Coupling Fittings for DIY Drip Irrigation System These drip irrigation couplings can be applied for garden, greenhouse, flower bed, patio and lawn, and other agricultural watering system. It is perfect for DIY irrigation system, you can create your own irrigation drip system with these practical connectors. Long-lasting Plastic Material Made of high quality sturdy plastic materials, this barbed couplings won’t break or deform easily. Secure Barbed Design Two barbed ends connect irrigation tubing for a secure leak-proof connection. Easy Installation, No Tools Needed There is no need of glue or other tools to install this coupling. You can easily insert it into the hose, which is securely connected and is not easy to fall off. Directly insert this irrigation coupling at the ends of the water pipe, there is no need of any glue or tools, making garden work more convenient and much easier. Tips: Heat the end of hose to help it slide on this coupling. Push the tubing firmly over the barbed side of the coupling to make sure tight installation. (You may use a heat gun to soften the end of the tubing before inserting.) Specifications: Material--Plastic Color--Black Package Includes: 30pcs Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.