The WARN 88527 Winch Remote Control is fully weatherproof and offers an industrial-quality corded remote control. It is designed to meet stringent performance standards for series 12,15, 18 industrial DC winches. The plastic locking collar is for remotes using steel locking collar, see WRN-77671 (12ft) and WRN-85394 (33ft). It is designed to meet stringent performance standards.