All DURA-LIFT torsion springs are manufactured from class 2 high-tensile, oil-tempered spring wire, meeting ASTM A229. All of our torsion spring wire is coated for improved corrosion resistance and easier handling. Both 10,000 "standard" cycle and 25,000 "high-cycle" springs are available in left or right wind, and in precut or longer lengths. Both the winding and stationary cones are professionally installed for safe operation. Torsion springs are designed to lift specific weights and should be replaced with springs of the same size and wire gauge. Make sure to correctly determine your wire gauge, inner diameter, and length over coils. 0.225 inch wire size x 2 inch ID x 27 inch L with red color Springs for your sectional garage door - measure 20 coils to determine spring wire gauge and coil-to-coil length to determine correct replacement spring Simple installation - install new or replace old, rusty springs quickly (professional installation recommended) Corrosion resistant - coated steel coils to help slow rusting process over spring life 1-Year warranty springs are warranted for 1-year from purchase date Color/Finish Family: Red Manufacturer Color/Finish: Red Type: Torsion spring Length (Inches): 27 Material: Steel Package Contents: One left-wound torsion spring, one right-wound torsion spring Package Quantity: 2 Warranty: 1-year CA Residents: Prop 65 Warning(s): No UNSPSC: 30171500