Winding Direction: Right Hand Wound Torsion Spring For Left Side (as seen from the back of door); Coiled Clockwise; Red Winding Cone Dimension: .225'' wire size x 2'' inside dimension x 34'' length. (Single Pack, Right-Wound Spring Only) Up-graded Quality: Made of heat-treated spring steel coils with aluminum cones with the electrophoretic coating technology provide excellent corrosion proof and superior abrasion proof. Salt spray tests up to 300 Hours, and Minimum 16,000 Cycles. Package Included : Single Pack Garage Door Torsion Spring (Left-Wound Spring Only), A pair of 17.2'' Non-Slip Winding Bars and Installation Instruction sheet. When selecting a replacement spring, it is crucial to match the wire diameter, inner diameter, and length with those of the original spring you have. Doing so ensures a perfect fit and optimal performance. Blesseras Right Hand Wound Garage Door Torsion Spring with Non-Slip Winding Bars, 0.225X2''X34'', Right-Wound For Left Side, Red Winding Cone, Single Pack