Double-looped ends are standard to add double the resistance strength.120 lbs.
DURA-LIFT 90 - 180 Pound Heavy-Duty Extension Garage Door Spring 2-Packs are extension spring replacements for broken sectional garage door extension springs for 7' tall doors. (2-Pack) garage door using extension spring systemSprings for your sectional garage door - replacement extension springs based on your garage door weightSimple installation - install new or replace old, rusty springs quickly (professional installation recommended)Corrosion resistant - coated steel coils to help slow rusting process over spring life1-year warranty - springs are warranted for 1 year from purchase date. All DURA-LIFT garage door extension springs are manufactured from oil-tempered spring wire meeting ASTM A229 and are designed for a minimum of 10,000 door open and close cycles. weight capacity - spring for 120 lbs.