Description: - DIY assembled solar power model kits set，educational science physical DIY energy conversion experiments toy - Energy conversion principle : solar energy convert to energy through ，including parallel or series circuit， physical and lever principle tips learning - Put the car model under the sun，senseboard absorb the ，and will run by itself - Develop children' ; eye coordination, and help children experience the of power, expand scientific ; mechanical interest - Cool designed DIY scientific toy gifts for - Main Material: Plastic - Color：MulticoloredSpecification: - Need to be assembled by yourself: assemble the model as the pictures shownSize Chart:Assembled size (L*W*H): Approx 7.2**4cm/ 2.83*2.16*1. inchPackage Includes:2 Set DIY Solar Power toys (with assembled picture instructions)Note:Due to the manual measurement, please allow 1-2mm differences in sizeDue to the light and screen difference, em's color may be slightly different from the pictures. Please understand