Harken Canvas Flat Fender Cover.
Flat fender prevents damage to your sailboat’s topsides when docked or rafted with other boats. Covered with tough Top Gun® fabric facing dockside and non-woven Softouch™ fabric next to the hull for long-lasting protection against chafing and scratches. Extra-firm 3" high-density foam protects hull from damage. The fender's square shape won't roll between the deck and dock, and is easy to stow. Mesh bottom drains excess water. Two reinforced webbing tabs on top secure fender. Grey.
Works well with most one-design boats.