Length：4.27m
Beam：1.05m
Deep: 0.50m

Intro.:

waterproof shade can not only  prevent waves from spraying but also keep the articles conveniently .(optional )
it can detach sitting board and auxiliary dynamical pylon .the biggest horsepower is 2HP.It can also  Provide whacking speed.(optional )
Owning the whacking  speed and acute cornering properties
Even if it overturns ,it can drain and erect soon .It owns the specific buoyancy design of sailing again soon.