Black PolyDac Jumbo Jump Rope Made from a blend of polyester and polypropylene fibers, ideal for indoor use. high abrasion resistance and an excellent strength-to-weight ratio. PolyDac exercise ropes are softer to the touch and don't shed like manila ropes. Heavy duty vinyl handles are stitched to the polydac rope on both ends to eliminate slippage. Heavy duty black nylon skip guard in the center to protect from fraying.