SMW W Type Rubber Fenders are suitable for the most extreme working conditions. The W-type fender is one of the most successful tugboat fenders in the world today. It has a unique "opening" design that makes installation very simple. Flexible legs allow the W-type fender to bend around most hull shapes. Fender is a bumper used to absorb the kinetic energy of a ship or vessel moored alongside a dock, dock wall or other vessel. Rubber fenders are extruded or made in molds. The type of fender that is most suitable for application depends on many variables, including the size and displacement of the ship, maximum allowable stand-off distance, berthing structure, tidal variations and other berth-specific conditions. The size of the fender unit depends on the vessel's berthing energy, which is related to the square of the berthing speed.