This is a kit so you can build your own Hydro Foam RC Plane Boat. This Hydro Foam Boat is made of very durable Balsa wood and foam. Our new Rc Hydro Foam is the first of its kind and never has anything like this been achieved before. You can literally be on a small lake playing around with your radio control boat, and at the flick of a switch you can be soaring vertical at a phenomenal speed.Click On The Image To Watch A Video Of Hydro Foam Boat In Action!