Feature:1. Made of 316grade polished stainless steel, it is sturdy, corrosionresistant, rustproof and durable.2. Fine workmanship, mirror polished to a fine luster for a highquality addition to your boat deck.3. Can be used as access openings for cabinets, doors, drawers, wall, countertops and many other locations.4. The installation is simple and does not require complicated operations.5. Built to meet standard specification, strictly follow factory quality control.Specification:Item Type: Deck Plate Material: 316 Stainless SteelInner Diameter: Approx. 7.62cm / 3inOuter Diameter: Approx. 122mm / 4.8inMounting Hole Diameter: Approx. 5mm / 0.2inHole to Hole Distance: Approx. 105mm / 4.1in.Package List:1 x Deck Plate 1 x KeyNote:Please allow 02mm error due to manual measurement. Thanks for your understanding.