[Specifications] Wire diameter 2 mm/0.79 inches, outer diameter 18 mm/0.71 inches, free length: 150 mm/5.91 inches, total 2 springs. [Material] The double-hook spring is made of high-quality stainless steel, which is resistant to rust and corrosion, wear and high temperatures, ensuring long-lasting use. [Function] The spring can be used in many applications, such as production assembly, experiments, research and development, maintenance, etc. It is widely used in electronics, home appliances, furniture, machinery and more. [Packaging] 2 pieces x compression spring, type: double hook. The surface of the spring is smooth and attractive and has been polished to improve the finish. The spring has a strong load-bearing capacity. [Principle] The stainless steel spring can produce greater elastic deformation when loaded, converting mechanical work or kinetic energy into elastic potential energy. The tension spring is a coil spring that supports axial tension. Features: Our tension springs have undergone strict and professional manufacturing to ensure product quality. The springs have good elasticity, high precision and an attractive appearance. The stainless steel springs are polished after manufacturing and have a strong load-bearing capacity. Our springs can meet your daily needs. Type: Double hook Color: Silver Free length: 150 mm/5.91 inches Spring size: (Outer diameter): 18 mm/0.71 inches Wire diameter: 2 mm/0.79 inches Material: Stainless steel Surface treatment: Polished Package content: 2 x compression springs