Feature 1Wide Usages: Marine bow shape roller is a universal accessory, applicable to various situations, such as boats, marines, yachts, trailer and much more to better meet your needs. 2Powerful Function: The marine shape roller allows the boat to roll smoothly on the trailer, not affected by oil, gas or salt, and free spins when launching to reduce drag. 33 Pieces Design: The bow stop roller takes full advantages of 3 pieces design, which can minimize friction and drag to ease in launching, convenient for using. 4Excellent Performance: Boat bow roller after sophisticated manufacturing process for smooth surface without burrs, will not mark up the hull with ugly black streaks. 5Reliable Materials: The boat trailer roller is carefully made from preferred PVC materials, flexible and moulded, not easy to damage, has a long service life.Item Type: Bow RollerMaterial: PVCCenter Inner Diameter: Approx. 14mm/0.6in (require a bolt, NOT included)Application: Boats, marines, yachts, trailer, etc. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Bow Roller (3PCS Parts in Total)