Boat Hand Rail Fitting Round Base 30-45 - 60-90 Degree 1&rdquo; Inch- Marine 316 Stainless Steel Precision cast 316 marine grade stainless steel. Maximum corrosion resistance and durability in the saltwater environment. Polished to a beautiful, mirror-like finish. Angle: 90 Degree. Base diameter: 2 11/16" See additional details in product description below.