Build and operate your own eco-fan using salt water and/or solar energy. Learn engineering and building properties in the setup portion of this activity and solar/salt water power properties with the end result. 100% battery free for eco-friendly fun, it's perfect for play in the sunlight! Recommended for 1 player, ages 8 and up. Made in china. Package dimensions: 10. 000 x 8. 000 x 2. 800 inches. Includes base, foothold, solar panel stand, salt-water container, propeller, solar panel, on/off switch, 2 feet, 3 salt water power modules, 3 spring connectors, motor, solar panel stand, 2 fan case pieces, 2 arms, instructions. Learning Skill: Science Recommended Ages: 8 Years And Up Measurements: 10 Length/Inches Assembly: Assembled Base Material: 100% Plastic Care: Wipe Clean Country of Origin: Imported p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 15.0px Calibri; -webkit-text-stroke: #000000} span.s1 {font-kerning: none} WARNING: CHOKING HAZARD – small parts. Not for children under 3 years.