Can be useful in many hard-to-reach locations, widely used for marine boats, vans, car, caravan and so on plate for positive action, easy installation With diamond tread non-slip step surface for safety Corrosion resistance, strong, sturdy and durable High polished finished for mirror-like appearance and to match modern watercraft/boat/yacht colour:Silver Material:316 stainless steel size:Base Size (L x W): Approx. 10.9 x 4.7 cm/4.3 x 1.85 inch Hole Inner Diameter: Approx. 0.8 cm/0.3 inch Two Screw Holes Center Spacing: Approx. 9 cm/3.54 inch Package Contents: 2 * Folding Mast Step Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.