Prime-Line Products GD 12227 Garage Door Torsion Spring, .218 in. x 1-3/4 in. x 20 in., Blue, left Hand Wind This left hand wound torsion spring is used for replacing broken garage door springs .218 in. wire size x 1-3/4 in. inside dimension x 20 in. length with blue color code When dual spring installations are involved, it is important to correctly install both the LEFT & RIGHT WIND SPRINGS during the same job Spring includes stationary & winding cones. Replacement requires use/purchase of item no. GD-52238 and a clear understanding of wire size and handing Right hand springs are mounted to left side of center and left hand springs are mounted to the right side of center (inside the garage looking out).