Laminated style dock bumpers provide durable, economical protection for your loading dock and trucks. Unites are constructed of fabric reinforced rubber from recycled truck tires. Pads are laminated between structural angles and held together with 3/4" steel tie rod. Installation is quick and easy by bolting or welding units to dock. Width is bolt hole center to bolt hole center. Bolt holes are 13/16" in diameter. Mounting hardware abailable.