Good material: This Spring is made of high quality steel material, exquisite production technology, high quality performance, strong structure and not easy to deform or break, and can be used for a long time Excellent function: This High Strength Torsion Spring has a good return force, can withstand torque and accumulate force through twisting or rotation Wide range of applications: Used in various fields such as industry, electronics manufacturing, model DIY, 3D printers, furniture repairs, toy repairs, etc. Additional explanation: Our company specializes in producing springs of various sizes, types and sizes. If you have more needs, you can contact us. Thank you for shopping in our store. If you have any questions, please send me an email at any time. I wish you a happy life.