This is a solar car science prop for home, school and more, which is made of good material, safe and stable. It is a practical and professional small science project for teaching or learning solar knowledge, which can improve your logical thinking and manipulative ability. Features -Color:Multi-color -Material:Metal, plastic -Size:11.50X6.50X5.50cm/4.52X2.55X2.16in -The solar car learning model is good for school teaching tool, learning display, and collectibles. -The solar car science model can improve students' hand-on ability and thinking ability. - The finished effect will and attractive. Encourages the exploration and understanding of scientific concepts. -Stimulates creativity and hands-on ability, encourages the development of practical skills. -To the understanding of solar car model, good for learning, practical and convenient. Package list: 1 x bottom board 1 x bracket 1 x electrical machinery 1 x solar panel 4 x wheels 2 x axles 1 x machine cover 1 x rubber band 1 x pulley (size S) 1 x pulley (size L)