The 24″ Hull Hugr Straight Dock Bumpers HHB-24W measures 24″ long x 4″ wide x 2 1/2″ tall and are filled with high-density closed-cell polyethylene foam. Manufactured from a UV-resistant and tear-proof vinyl / polyester tri-laminate. There are 4 corrosion-proof polycarbonate grommets for mounting to docks. The straight dock bumper is white. You can mount these 24″ Hull Hugr Straight Dock Bumper, which are permanent bumpers, to the sides of your dock and save space in your boat without all the fenders and mooring pads. These straight dock bumper only weigh 2 pounds and are easy to mount!