NKC Electronics Component Kit for Arduino with NE555 LM741 LM386 CD4026 74HC595 resistors capacitors transistors Ideal for Getting Started with Arduino Book projects (book not included) Breadboard and jumper wires Transistors, diode, shift register, 7-segment driver, NE555, LM741, LM386 Resistors, Capacitors, switches, potentiometer, LEDs, 7-segment display speaker, microphone, magnet, buzzer