Our high-tension steel replacement torsion springs at Garage Door Supply Company include this .218-in. by 2-in. by 23 1/2-in. left wound garage door torsion spring. Torsion springs, which are located directly over the door opening, can wear out over time. When you replace yours, check your owner's manual to make sure you're ordering the exact size you need. We also sell right wound torsion springs.