100 Metres Marine Grade Wire Cable 7×7. Diameter (MM): 0.5, 1, 1.25, 1.5, 2, 2.5, 3, 4, 5, 6, 8. Metal – 316 Grade Stainless Steel. This Particular Wire Rope Is Generally Used For Landscaping And Balustrade Use And Is Ideal For Marine Uses. 7×7 Is More Flexible Than 1×19 And Is Stronger Than 7×19 But Not As Strong As 1×19.