Material - Our tension springs are made of 304 stainless steel, providing corrosion resistance and durable performance in a variety of environments. Size and fit - Wire diameter: 0.5 mm (0.02 inches) - Outer diameter: 3 mm (0.12 inches) - Length: 100 mm (3.94 inches) - This precise size combination offers a strong, secure fit for many applications and dependable performance. Performance and features - Strong hooks at each end for secure attachment points - Uniform pulling force and robust elasticity to resist deformation under load - Loops at both ends provide firm attachment points - Reliable resilience under tension for consistent operation Applications and use scenarios - Electronics and small devices: ideal for return mechanisms, latch or panel retention, and retractable components where a steady spring force is needed - Tools, construction, and machinery: suitable for securing parts, providing controlled tension, and returning moving elements to position in assemblies and enclosures - Automotive and aerospace components: useful for panel retention, cable management, and other tensioning needs where durable stainless steel springs are required Versatility - Applicable across manufacturing, research, automotive, aerospace, electronics, tools, toys, construction, and general machinery projects - Provides dependable performance in both commercial and personal projects without sacrificing durability or reliability