Durable Material: 10 pack oxygen tubing connector made of safe and high-quality material is included, which can be reused. Compatible Tubes: PLEASE NOTE that this cannula connectors is only suitable for the oxygen tubes in image 3. Easy to Install: The oxygen cannula tubing connector will only take a few seconds and you can easily connect two oxygen tubes. No Leakage: Multi-threaded design makes for a tighter connection and avoids oxygen leaks that can cause patients to lose oxygen. 360° Rotation: The oxygen swivel connector can prevent tubing tangles and improves patient comfort and oxygen flow.