This DURA-LIFT .243 x 2" x 35" Green Right Wound Garage Door Torsion Spring is a torsion spring replacement for broken sectional garage door torsion springs. All DURA-LIFT springs meet the DASMA standard rating of 10,000+ door open and close cycles. Both the winding and stationary cones are professionally installed for safe operation. All springs are coated for corrosion resistance and clean handling. PROUDLY MANUFACTURED IN THE USA.