Marine Grade Stainless steel thimble with high grade corrosion resistance and durability Resist saltwater, gas, oil, abrasion 3/8 Inch 100 FT150 FT Nylon Double Braided Anchor Line Nylon is The Best Materail For Anchor Line, is Ultra Strong With a Higher Tensile Strength Than Other Materials. For Boats Up to 27'. Breaking stength: 4035 lb MARINE SYSTEM Made 3/8 Inch 100 FT 150 FT Black Grey Nylon Anchor Line Double Braided Anchor Rope/Line with Thimble