Features: Harness the power of the sun with our Solar Powered Mute Motor, efficient physics teaching tool that operates without batteries or external power sources. Designed for quiet operating, this motor is easy to assemble and use, making it great for science education, school laboratory and classroom setting. Very suitable for school students, physics teachers, and science enthusiasts, for enhancing their teaching and physics electricity experiment. Widely use for school laboratories, home education environment, and science exhibition, showcasing the practical applications of solar energy. Constructed from abs and metal, this educational teaching tool belongs to Office & School Supplies category, specifically under Teaching Aids for Physics Education. Specifications: Color: Green Component: Metal; ABS Size: Approx. 7.5x3.50cm/2.95x1.37in Weight: Approx. 30g Package Includes: 1Piece Solar Powered Motor note: 1.Please allow 0-1cm error due to manual measurement. Be sure you donot mind before bid. 2.Due to difference between different monitors, the picture may not reflect the actual color