Growing Spiral Material: Mild steel, galvanized pvc coated iron wire Features: Flexible and reliable. Galvanized steel tomato spiral wire offers excellent corrosion resistance while pvc coated spiral wire has good anti-aging property and a long service life. Annealed tomato spirals offer even better flexibility due to its oxygen-free processing Packing: Spiral wire can be packed in bundles, then in paper box, then in pallets Uses: For support of tomato plants in growing