Features: Enhanced buoyancy foam rubber tube maintains floatation even when punctured, outperforming traditional PVC lines that sink when damaged ideal for saltwater fishing float line applications requiring performances. Features 4mm inner/12mm outer diameter with stainless steel sealed joints and 150KG test braided cores, combining with tensile strength for dive fishing gear durability. Designed for professional anglers and spearfishing enthusiasts who demand puncture resistant equipment capable of withstanding environments and strong currents. Perfect for sea bottom fishing, coastal areas, or fast moving tidal zones where floating line visibility and abrasion resistance are critical for successful catches. The combination of closed cell foam rubber buoyancy technology and marine grade stainless steel components creates the fishing tool line optimized for saltwater fishing accessories that prioritize safety and longevity over traditional PVC alternatives. Specifications: Component: foam rubber stainless steel Size: 10m/393.7in, 15m/590.55in, 20m/787.4in Inner Diameter: 4mm/0.16in, Outer Diameter: 12mm/0.47in Package Includes: 1pc Spearfishing Float Line note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.