A boat trailer is a type of boat trailer that is towed behind or attached to larger vehicles. They are most commonly used to transport small watercraft and other water-related vehicles for recreation. Other Trailer trailers can be designed with several components depending on their purpose. These may include frames and structures to support the boat, boat mooring attachments, motor lowering and lifting mechanisms, and launching supports. Many other trailers also come equipped with storage compartments and tie-down capabilities for securing equipment and personnel on board.