This ket designed for enthusiasts to get hands-on experience about Arduino programming, electronics assembling, and robotics knowledge. Perfect choice for beginners to learn about smart robot Cars, electronics and program, easy to assemble all module. This kit includes UNO R3 Board, HC-SR04 Ultrasonic Sensor, V5.0 extension board, Line tracking module, The best tutorial includes program,code, Libraries and installation method. All parts components are clear listing in a nice box.