Item Type: Engineering science assembly vehicle Material: Plastic, electronic components Battery: 2pcs AA battery (not included) Power Supply Mode: Solar panel power supply, AA battery power supply (battery not included). Age: Above 6 years old Package List 1 x Vehicle Body 2 x Assembled Plates 1 x Small Parts Assembly Plate 1 x Solar Panel 4 x Wheels 1 x Instruction 1 x Switch Electronic Component 1 x Car Seat Part 5 x Bag of Screw parts 1 x Screwdriver 3 x Door And Window Parts 1 x Gear Motor Assembly 1 x Wheel Iron Sticker 1 x Paste Paper 2 x Doors 12 MODES: You can switch between 2 motion modes, one needs 2pcs AA batteries and the other is powered by solar panels, choose according to choice. 24 WHEELS DRIVE: You can use the assembly vertical wheels on 4 corners to move forward, which can stimulate children curiosity, creation and hand on ability. 3ASSEMBLY: DIY Experiment building car includes all materials needed for simple buckling or screw assembly, and the assembly can be completed by simple wiring. 4OPENABLE CAR DOORS: Educational solar powered car has exquisite and realistic interior decoration, all the details worth your trust, and help kids to clearly know the internal structure of the car. 5DIY: For your younger child from entry level to advamced level to chanllenge their manipulative skills, encourage your kids to explore their imagination.