Made of plastic, sturdy and waterproof, can be used for a long time in the sun or rain when used outdoors. The irrigation pipe plug is suitable for connecting two sections of 4/7 pipes (inner diameter 4mm and outer diameter 7mm) to conduct water to another place, or for connecting 4/7 pipes to the water supply pipeline. You can use these drip pipe end caps to plug the end of the distribution pipe into the drip irrigation system, or just plug the hole in the pipe. These plugs work well where you want to stop the water flow. Before you push these plugs into the hole, you'd better soften the pipe first, because it's hard to push them in with your fingers, or you can take a small plier with you to help you finish the installation. Can be used for garden irrigation PE pipe and 4/7 pipe connection, suitable for washing machine, garden watering, irrigation and other occasions. Shipping Quantity: 100pcs