The spring inside our garage has a proper elasticity when they are compact and rigid. This is the ability to function with proper tenacity and durability is possible only because of the spring and other features. The garage doors rely on them as the cables and spring work together to induce the proper capability of functioning smoothly. #garagedoorspring #garagedoormartinc #garagedooropener #garagedoorrepair #emergencygaragedoor #repairchicago