The XD™ Kevlar® Revolver Rope is truly a unique innovation in speed rope training. The patent pending 3mm Kevlar® sheathed cable provides unparalleled protection for whips and missed jumps while not sacrificing speed or performance. This Kevlar® sheathed cable will not kink or coil. The handles are made of high grade aluminum alloy with 4 hi-precision ball bearings per rope. This is truly one of the fastest speed rope you can buy. Available in 3 precut fixed length 8ft, 9ft, 10ft. For indoor use only on smooth surfaces. Do not use outdoors on pavement or rough surfaces.