Trailer Bow Roller Assembly 4 Inch Yellow Polyvinyl Bow Roller For Boat Trailer Winch Po 1/2 Inch Shaft Roller This feature adds an extra layer of protection and peace of mind during transportation., With a ½ in. This bell will match perfectly with our Yellow 4 inch PVC Bow Roller if you are looking to make your own new assembly for your 4-inch wide winch stand bracket shaft and coming in lengths of 3 in., and 4 in. Parts Of A Boat From A Side View at Kristina Hertz blog Item Package Quantity - 1 the bow roller assemblies are all-inclusive, including nuts, two washers, and end bells. Trailer Bow Roller Assembly at Laurence Drake blog This feature not only makes the process easier but also helps maintain the balance and stability of your boat on the trailer. Acting as a buffer for the boat's bow, they provide a soft and cushioned surface that reduces impact and minimizes the risk of damage to both the boat and the trailer. This ensures that your boat remains secure and protected during transit, even on rough roads or uneven terrain.