The double hull tender sized from 360cm to 950cm, we call Bass boat. For standard Hypalon aluminum hull inflatable boat and professional off-shore boatsBB470, its boat hull thickness is 3mm without fuel tank. But some clients would like to change into 4mm boat hull with 70L fuel tank under deck. This model has complete accessorries of middle console, anchor holder, rear seat, roll bar with navigation lights, EVA pad, bilge pump and etc.