Material: 304 stainless steel for durability and corrosion resistance. Size: Each spring features a wire diameter of 1.8 mm (0.071 in), an outer diameter of 16 mm (0.63 in), and a length of 80 mm (3.15 in). This precise size combination provides a strong, secure fit for a range of applications and dependable performance. Strength and elasticity: Equipped with strong hooks at both ends and loops for firm attachment points. The spring delivers a uniform pulling force with resilience under tension. Applications: Widely used in electronics, tools, toys, construction, and machinery; also suitable for manufacturing, research, automotive, and aerospace contexts. Versatile for commercial and projects. Use scenarios: In electronic enclosures or equipment housings to keep lids or panels under consistent tension. In automotive interior components or small machinery to secure panels, covers, or latches with reliable force. In hobby, education, or toy kits to provide controlled spring action for moving parts.