Brattlof Boathouses dock bumpers are manufactured and engineered out of a memory foam material. This material is non marking, non scratching. It includes a polypropylene exterior with UV retardant to avoid fading, The bumper is designed to compress 30% then to become firm, preventing any damage from boats impact. We offer solutions for wood pilings and steel pilings. We offer corner bumper packages to protect the entrance of boat slips when approaching. Contact our office today for a consultation on how our dock protection can protect your investment.