Product Description The SF 420 boat is a new designed inflatable boat, it is not only unique in designing but also durable in quality. After being our long term technology development and workmanship improvement, we eventually obtained much advantages that making it lighter in weight as to be easy to carry as well as more rigid in shaping. It also consists of a number of chambers with high pressure in order to be more stiffness and safety in using. Product Type: Inflatable Speed Boat Material: PVC Outer Size: 420X200X83CM Inner Size: 290X120CM Packing Size: 158X78X50CM Feature: Lighter, rigid, durable and portable Side Tube Diameter: 38cm Bottom Thickness 1.2mm Side Tube PVC Thickness 0.9mm Hull Pressure: 12 15psi Bottom Pressure: 12 15psi Keel Pressure: 8 10psi Side Buoy Pressure: 8 10psi Seats Pressure: 8 10psi Room Bottom Keel 1 Bottom 1 Hull 4 Chair 4 Speed 50 kmhr Motor Power(long Shaft) 15 20HP Gross Weight: 55kg Net Weight: 45kg Max Loading: 700kg Max Riders: 5 8 riders