VEVOR Garage Door Torsion Springs Pair of 0.234 x 2 x 28 inch with Winding Bars

VEVOR Garage Door Torsion Springs Pair of 0.234 x 2 x 28 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): 23.4lb / 10.6kg,Spring Size (Wire Dia. x Inner Dia. x Length): 0.234 x 2 x 28 inch / Φ5.94 x Φ50.8 x 711 mm,Item Model Number: 234-2-28,Rotation: 1 x Dextrorotary + 1 x Levorotary,Main Material: High Carbon Steel 82B + Cast Aluminum ADC12