[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, not easy to rust and corrode, is durable and can withstand high temperatures, and can be used for a long time. [Function] The spring can be used on many occasions, such as production, assembly, experiments, research and development, maintenance, etc. It can be widely used in electronics, home appliances, furniture, machinery, etc. [Compatible with packaging] 2 pcs x compression spring, type: double hook. The surface of the spring is smooth and neat and is polished Compatible with to Compatible with improve the surface finish of the spring. The spring has a strong load-bearing capacity. [Principle] The stainless steel spring can produce greater elastic deformation under load and convert mechanical work or kinetic energy into elastic potential energy. The tension spring is a coil spring that can withstand axial tension. Features: Our tension springs have undergone strict and professional engineering Compatible with to ensure product quality. The springs have good elasticity, high precision, and a beautiful appearance. The stainless steel springs are polished after production and have a strong load-bearing capacity. Our spring 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: Polished Package content: 2 x compression springs