Seachoice Spool Roller 4"x5/8" Black 50-56150 by Seachoice $7.45 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Seachoice Trailer Spool Roller #50-56150 Size: 4" x 5/8" Non-marking black rubber with plastic sleeve.