VEVOR Garage Door Torsion Springs, Pair of 0.25 x 2 x 30inch, 16000 Cycles, Garage Door Springs with Non-Slip Winding Bars, Gloves and Mounting Wrench, Electrophoresis Coated for Replacement | VEVOR CA

Item Model Number: GZ-30
Spring Size (Wire Dia. x Inner Dia. x Length): 0.25 x 2 x 30inch / Φ6.35 x Φ50.8 x 762mm
Rotation: 1 x Dextrorotary + 1 x Levorotary
Net Weight(Include accessories): 26.45 lbs / 12 kg
Main Material: High Carbon Steel 82B + Cast Aluminum ADC12
Service Life: Approximately 16,000 Cycles (opening + closing)