The double hull tender sized from 360cm to 1150cm, we call Sport boat. For rigid hulled inflatable boat and center-console RIB SP700, its main inside keel is made of 10mm aluminum plate. Its bottom hull and transom pad are made of 5mm aluminum plate. Boat has 180L built in fuel tank. This is luxury sport rigid boat model. Boat is wider than SP600 and SP660. It has deep V boat hull and boat performance is good. And boat price is competitive. A 40' container could load 2ps of this model boat.