C.E. Smith Roller Style Boat Guide (Pair) - 21?

Makes boat loading easier. Galvanized posts are pre-assembled with a 9" roller and end daps. Height 21" with adjustment out to 13" each side. Can be mounted on top of frame for extra height. Complete kit for trailer frames up to 3" Width x 4-1/4" Height. Display box for easymerchandising.