Description: Kids Student Physics Scientific Experimental Educational Toy - DIY Hand Crank Generator Assemble Model. It's about the physics principle, gear and pulley drive, direct current principle, mechanical energy converted to electrical energy and electrical energy converted to light energy. Assemble the toy according to the manual, shake the handle quickly, the big gear will drives the pinion to accelerate, the big pulley drives the small pulley to accelerate twice; the high-speed rotating motor sends out a direct current to power the light. Great for kids to learn physics knowledge, intelligence development, training practice skill, creativity. As a family education resource, enhance parent - kids relationship. Suit for 6 year old kids and above. Specification: Material: Environement-friendly Plastic Assembly size (LxWxH): 90x75mm / 3.5x3 inch Package Includes: 1 Set Hand Crank Generator Toy 1 Piece Manual
