The Marpac 7-1570 Boat Trailer Spool Roller is engineered for top-tier protection and performance. Made from a non-marring poly blend with UV inhibitors, it ensures that your boat's hull remains free of any black streaks or damage. This roller is designed to fit a 4" bracket and features a 5/8" shaft, providing a secure and durable fit. Ideal for reliable trailer operation without marking your boat’s hull.
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