ITEM NAME:Stainless Steel Boat Cup Drink 2 Holder For Marine/Yacht/Boat/RV/Car/Trailer Description: Fitment: fit for Fishing Boat, Kayak, Yacht, Truck, Car, Apartment, RV Suitable for Most Cans, Mugs and Cups High Quality Stainless Steel, Sturdy and Durable Install through screw bolt (Not included) Inner Diameter: 91mm/3.6inch Base Size: 63x18mm/2.5x0.7inch Screw Hole Diameter: 5mm/0.2inch Package Includes: 1 Piece Cup Holder.1 Piece Cup Holder. High Quality Stainless Steel, Sturdy and Durable.