Heavy duty Trailer Keel Roller

Allows boat to roll smoothly on the trailer. Spins freely to reduce drag while launching your boat. Heavy Duty Rubber Black
 Black rubber with 5/8" Soft inserts.
 Sizes :  8",10", 12".
 Heavy duty steel sleeve and tapered design provide longer life.
 Non-marring, durable rubber protects your boat’s finish.
 Molded rubber over steel tube with nylon end inserts.
 Extremely tough, designed specifically for heavier boats.