Expansion Spring is packed in a safe carton boxes to avoid certain dust, grease and defect from impact surfaces. It is designed in a wrapped tight coil for using washing devices, assembling garage doors, dairy farm spares etc. It has tensile strength of loops and hooks which easily pulled out the product. Expansion Spring is suitable for all the challenging climatic conditions. It has a rust proof and abrasion resistant body structure. It can be availed in various models and specifications.