6 Strands Playground Combination Rope with Steel Wire Core Covered With Poly FiberCombination Rope has the same construction as wire rope. However, each steel wire strand is covered with fiber which contributes to the rope having high tenacity with good abrasion resistance. In the process of water use, the rope inside the wire rope will not rust, thereby greatly increasing the service life of wire rope, but also has the strength of the steel wire rope. The rope is easy to handle and secures tight knots. Generally the core is synthetic fiber, but if faster sinking and higher strength is required, steel core can be substituted as the core.