GDN Garage Door Torsion Spring, 28" Length, 2" Inside Diameter, 0.25 Wire Size, Right Wound Torsion springs are black coated, corrosion resistant, oil tempered and made in the U.S.A. When ordering torsion srings be sure you have the correct A) Wire size B) Inside diameter C) The length of spring in inches D) Wind of Spring (Right Hand Wound, Left Hand Wound or a Pair RHW and LHW.)