These bow rollers are the best in the marine industry. Constructed of a single piece of 316L Stainless Steel and formed into a channel gives these the strongest construction and thickest sidewall of any product in the market!  We use Delrin® for the rollers which is a material that is impervious to saltwater and sun making them the strongest, most durable rollers available.  All rollers come with our signature Mirror Finish which is renowned for its appearance and style.