Wincher, 2.25IN TO 2.75IN from WATSKI
Winchers are rubber disks that fit over the top of your non-self-tailing winches to make them perform like self-tailers. Loading up the winch drums until the line contacts the underside of the Wincher creates friction which allows the line to self-tail. A rope groove holds line reasonably securely around the top of the winch. Practical Sailor Magazine suggests Winchers for halyard winches, but not sheet winches, although we have many comments from customers who swear by them.