This residential garage door torsion spring uses 0.243-inch wire and comes with the winding and stationary cones already installed. It is offered in 1 3/4-inch and 2-inch inside diameters with lengths from 27 to 55 inches. Choose left wind, right wind, or a pair from the available options. It is made for standard residential torsion spring systems and is rated for about 10,000 cycles. Check the wire size, inside diameter, and relaxed spring length on your existing spring before ordering.