General description Introducing VEVOR garage door torsion springs, engineered for excellence to ensure superior performance and lasting durability. Crafted from high carbon steel 82B and cast aluminum ADC12, these springs provide exceptional fatigue resistance and reliability, making them a perfect upgrade for your garage door system. Technical specifications Wire Diameter: Φ 0.25 inch (6.35mm) Inner Diameter: Φ 2 inch (50.8mm) Coil-to-Coil Length: 29 inch (736.6mm) Number of Coils: 116 Net Weight (including accessories): 25.79 lbs (11.7 kg) Main Material: High Carbon Steel 82B + Cast Aluminum ADC12 Service Life: Approximately 16,000 cycles (opening + closing) Rotation: 1 x Dextrorotary + 1 x Levorotary Compatibility and accessories 2 x Garage Door Springs (1 Left, 1 Right) 2 x Winding Bars 1 x Pair of Non-Slip Gloves 1 x Mounting Wrench 1 x User Manual Installation Installation is made easy with imprinted sizes and left/right labels on the springs. The package includes anti-slip