Factor 55 - RRP + STANDARD DUTY SOFT SHACKLENow you can own the worlds first winch friction pulley with a patented rope retention feature and our Standard Duty 10 Soft Shackle. Bundle and save. The worlds first winch friction pulley with patented rope retention feature. A lightweight alternative to traditional heavy snatch blocks pulleys. The RRP can be used to increase pulling power or redirect the winch line. The RRP is for use with SYNTHETIC ROPE ONLY and is to be used in conjunction with a