Dock Bumper Rubber Overall Height 12 in Overall Depth 4 1/2 in Overall Width 26 in Rectangular Bumper Height 12 in Bumper Width 20 in Bumper Depth 4 1/2 in Mounting Hole Dia 13/16 in Mounting Holes O.C. W 24 in Mounting Holes O.C. H 8 in Number of Mounting Holes 4 Mounting Style Bolt On