Specification Brand : uxcell BulletPoint : Elevator Spare Parts Door contact qks9 spring for Lifts Components Accessory BulletPoint1 : Wire Dia: 1mm/0.04"; Size: 31 x 0.9cm/12.2" x 0.4"(L*D) BulletPoint2 : Color: Silver Tone; Material: Metal BulletPoint3 : Net Weight: 35g BulletPoint4 : Package Content: 1 x Extension Spring BulletPoint5 : Product Name: Extension Spring Color : Silver ExternallyAssignedProductIdentifier : 9190169576834 ExternallyAssignedProductIdentifier1 : 0746205407335 ExternallyAssignedProductIdentifier2 : 746205407335 IncludedComponents : No ItemName : uxcell Metal Tension Coil Extension Helical Spring Hook 31cm Long Silver Tone ItemPackageDimensions_Height : 18.1 centimeters ItemPackageDimensions_Length : 1.4 centimeters ItemPackageDimensions_Width : 14.9 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : extension-springs Manufacturer : uxcell Material : Metal MeasurementSystem : Inch ModelName : Fafeicyr75bw83gox-11 ModelNumber : US-SA-AJD-51471 NumberOfItems : 100 NumberOfPieces : 200 PartNumber : a14021300ux0011 PinType : Spring ProductDescription : The Extension Springs give resistance to a pulling force and become longer under load. Feature Hook ends, close-coiled, applications include balance scales, garage doors, washing machines and applications which requiring various types of tensioning devices.