This Stoltz Bow Roller is made of polyurethane. This bow roller is specially designed for use on a boat trailer, to be mounted on the front of your trailer, on the winch position / post, to protect the bow of the boat during loading or unloading. Stoltz products are simply the best option for rollers and stops for your boat trailer. Extremely UV-resistant elements prevent this roll from fading and cracking like other rubber rolls or cheaper versions of poly rolls.
This is a very difficult point of contact on a boat, so having the best quality product is essential.