Allows your students to design, build and test their own submersible vessel. The kit includes three motors to allow for vertical and horizontal control of the vessel. Also included in the kit are plastic ballast tubes, control switches, Kre8- structural frame parts, propellers, detailed instructions and resource material, plus much more. Soldering, melting and pouring of low temperature wax is required. A Lantern Battery (see below) is required as a power source.