- Material: Plastic<br />- An Eco-Friendly design<br />- Gives your kids a chance to learn about new forms of clean energy， while building and powering their very own toy<br />- No battery needed，powered by salt-water<br />- Assembled by yourself<br /><br />                                                                                                                                Dimensions: 5.31 in x 3.54 in x 0.12 in (13.5 cm x 9.0 cm x 0.3 cm)<br />Weight: 1.27 oz (36 g)<br /><br />