Feature:1. DIY Assembly: Through diy practice, students can learn to put things together themselves, which helps children to improve their hands on skills, the ability to think independently and develop their brain and creativity.2. Educational: Helps children to learn the mechanical transmission structure of a model vehicle and systematically and comprehensively learn the principles of energy conversion and mechanical movement.3. Two Modes of Energy Output: one is battery powered, which makes the car convenience to play indoors. The other is solar powered, you just need to operate the toy car outdoors in a sunny location.4. Material: Made of ABS, which is very hard, has strong impact resistance, scratch resistance and dimensional stability, moisture resistant, corrosion resistant. So the product has a long sevice life.5. Gift: This product allows children to learn something about science, is a wonderful gift for children to know the construction of car model. Let them learn through play and have fun with learning.Specification:Item Type: DIY Solar Rover.Material: ABSBattery: 1 x AA Batteries (not included)Charging Mode: Indoor Battery Powered, Outdoor Solar PoweredSize: Approx. 22.5 x 14 cm / 8.9 x 5.5inPackage List:1 x Axle Bar1 x Switch1 x Solar Panel6 x Wheels1 x Base1 x Battery Box Cover2 x Orange Accessories1 x White Accessories1 x Sticker3 x Block Board1 x Double Sided Tape5 x Gears2 x Battery Iron1 x Screws1 x Motor1 x Chinese and English Instructions2 x Red Gears