Description: Material: The Boat Trailer Bow Roller is made of quality PVC material on the inside, which is strong and wear resistant, lightweight, high load bearing, wear resistant, and good durability.Easy to Use: Boat Trailer Bow is easy to install and easy to use, you can easily tow your boat, improve your work efficiency, and save your energy and time.Rolling without noise: The Bow Roller is carefully designed, the rolling is smoother, and the noise during use is very small.Strong Bearing Capacity: The quality 5.5inch Boat Trailer Roller Bow Stop has a very good load bearing capacity, allowing the bow roller to support your bed smoothly and prevent it from tipping over.Replacement Parts: This is a very suitable replacement Trailer parts, lightweight and portable, high temperature resistance, and can support while rotating to decrease underwater resistance. Size Chart: installation hole diameter: 15mm/0.59inch overall product size: 139mm/5.47inch Package Includes: 1Boat Trailer Roller Note: Please allow slightly errors due to manual measurement and different monitors.