Material: 304 stainless steel. Precise size: 2 mm wire diameter (0.079 in), outer diameter 18 mm (0.71 in), length 336 mm (13.23 in). This precise size combination ensures a strong, secure fit for various applications and dependable performance. Strength and elasticity: End loops provide firm attachment points; strong hooks and a uniform pulling force; the spring's elasticity offers powerful resistance and reliable resilience under tension. Wide application range: From manufacturing to research, automotive to aerospace; widely used in electronics, tools, toys, construction, and machinery. Their versatility makes them essential for both commercial and projects. Use scenarios: Electronics: suitable for enclosure latches or door mechanisms. Automotive: useful for trunk or hood tensioning and systems. Industrial machinery: serves as a or positioning spring for levers, clamps, and similar components.