Fender

A fender is a cushioning device used on boats and ships to prevent damage to the vessel or dock when they come into contact, particularly when coming alongside. Fenders are typically made of rubber, foam, or other materials that absorb impact and protect the hull from scratches or dents. They are usually attached to the sides of the boat or dock and can be cylindrical, spherical, or flat in shape. Fenders come in various sizes and designs to suit different types of vessels and docking situations.