Garage Door Torsion Springs Pair of 0.225 x 2 x 27 inch with Winding Bars

Garage Door Torsion Springs Pair of 0.225 x 2 x 27 inch with Winding BarsPrecision Engineering for PerformanceUpgraded and Improved TechnologyDurable Beyond CompareQuick & Hassle-FreeSafety FirstSpring with ElectrocoatingService Life: Approximately 16,000 Cycles (opening + closing),Net Weight(Include accessories): 21.6lb / 9.8kg,Spring Size (Wire Dia. x Inner Dia. x Length): 0.225 x 2 x 27 inch / Φ5.72 x Φ50.8 x 685 mm,Item Model Number: 225-2-27,Rotation: 1 x Dextrorotary + 1 x Levorotary,Main Material: High Carbon Steel 82B + Cast Aluminum ADC12