Folding Mast Step Base Size (L x W): Approx. 4.3 x 1.83 inch Hole Inner Diameter: Approx. 0.3 inch Two Screw Holes Center Spacing: Approx. 3.55 inch Pack of 2pcs2pcs Folding Mast Step Marine Stainless 316 for Boat Yacht Car Rv Truck$45.00PriceQuantityAdd to CartBuy Now