1.Flexible Swan Neck bends are suitable for a wide range of welding applications and are an ideal aid for welding work. 2. Have high quality and excellent performance, which can help you to complete your work more efficiently during the welding process. 3. Allow you to easily make angle adjustments to improve welding efficiency and precision. 4. There are four models, so you can choose the one that suits your welding torch and your job. 5. Very easy to install and use, which can make your welding process smoother and more efficient.