18003 Florida Fin - 2" Deep, 4" on Center GrayLastic™Elastomeric Urethane - Up to 100 uses.Mold-bonded to 0.75" plywood. Add 1.125" to liner thickness. Max Depth: 2.000"On Center: 4.0"Peak: 1.875"Valley: 1.875"Draft: 0.125" Part Size: 48"W. x 120"L. Click here for cut-sheet