Description: Boat rail / stanchion round base For 1" (25mm) rail / tube 90 Degree Professional marine grade cast 316 stainless steel Strong corrosion resistance and durable in saltwater circumstance High polished surface for mirror-like appearance and to match modern watercraft/boat/yacht Specification: Material: 316 Stainless steel Color: Silver Base Diameter: Approx. 2.76 inch/70 mm Round Hole Inner Diameter: Approx. 1 inch/25 mm Height: Approx. 1.77 inch/45 mm Screw Hole Inner Diameter: Approx. 0.24 inch/6 mm Two holes center spacing: Approx. 1.81 inch/46 mm Package Includes: 1 Piece Boat Rail / Stanchion Round Base