Description: Heavy duty professional marine grade cast 316 stainless steel split bollard Slotted centre shaft easily secures the anchor chain, rope or line Slot fits 8-10mm general or short link chain Spring loaded captive pin to secure chain into the bollard Strong corrosion resistance and durable in saltwater circumstance High polished surface for mirror-like appearance to match modern watercraft/boat/yacht Specification: Material: 316 stainless steel Color: Silver Base Size (L x W): Approx. 5.9 x 5.9 cm/2.3 x 2.3 inch Height: Approx. 8.6 cm/3.39 inch Screw Hole Diameter: Approx. 0.7 cm/0.28 inch Center Slot Width: Approx. 1.2 cm/0.47 inch Package Includes: 1 Piece Split Bollard Note: Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. Thanks!