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Today, we're going to review part number DL21568. This is the Dutton Lainson 5-inch long spool
roller for boat trailers. This part is made of a solid high-grade rubber. It is 5 inches
long and it has 3 inches in diameter, and the hole in the middle is a 5/8-inch diameter
so it does fit on the shaft size of 5/8 of an inch. This spool type keel roller is designed
to support the keel of lighter boats allowing easier launching and loading of boats. Another
measurement is the flat area right here in the middle.
We'll measure 2-3/4 inches. That should do it for review on part number DL21568.