Description: 3 spoke stainless steel Made of Marine Grade Stainless Steel Polished to a bright mirror finish, Control Knob included Anti-corrosion, anti-rust, surface polishing, glossy and beautiful appearance Specification: Material: Stainless steel Diameter: Approx. 34 cm / 13 inch Pipe Thick: Approx. 2 cm / 0.8 inch Middle Cover Diameter: Approx. 8.5 cm / 3.3 inch Package Includes: 1 Piece Boat Stainless Steering Wheel Note: Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. Thanks!