Name: 1/4 inch plug elbow connector Color: gray Material: POM raw material Pipe diameter: 1/4 inch (6.0-6.5mm) Thread diameter: 12-12.5mm how to use: Simply pop the 1/4-inch tube to each end and push in until it cannot be inserted. To remove, just push in the outer circle at both ends and pull it out to the right. You need to ensure that the pipe is cut into a square to ensure that there is no leakage. Make sure to cut the pipe flat and straight without crimping, and then insert it straight into the connector. If it is bent, not fully inserted or crimped, then May leak You will receive: 5x plug elbow connectors