Complete and practical package: The package contains more than 250 components, which can help you complete interesting and simple electrical experiments. Clear and sturdy packaging: Each component is classified and packaged and placed in a transparent box with clear labels on it, making it easy to find components. Humanized design: The package includes a power module and a USB data cable, and the components can be directly plugged into the breadboard, which is more convenient without soldering. The quality of components is reliable. Compatible with STM32,Raspberry Pi,Arduino and so on. Product incluede: 1x Project Box 1x Power Module 1x830 hole breadboard 10x Resistor (100Ω) 10x resistors (220 ohms) 10x Resistor (330Ω) 10x Resistor (560Ω) 10x resistors (1k) 10x Resistors (2k) 10x Resistors (4.7k) 10x resistors (10k) 10x Resistors (20k) 10x Resistors (51k) 10x Resistors (1M) 10x Resistors (10M) 5x100uf electrolytic capacitors 5x100nf Metal Capacitors 5x100pf ceramic capacitor 5x47uf electrolytic capacitor 5x22uf electrolytic capacitor 5x330up electrolytic capacitors 5x100pf Monolithic Capacitor 10x1N4007 Diode 1x Active Buzzer 1x passive buzzer 3x10k potentiometer 3x10k potentiometer 1 x10k potentiometer 5x Photoresistors 5xPNP transistors (8550) 5 x NPN transistors (8050) 2x IRF520 2xRGB LEDs 8 large buttons 8x large button caps 2x reading needle cover 2x blue pin caps 2x green pin caps 2 black pin caps 1 x 4N25 1x JQC-3F(T73) 5VDC 10x White LEDs 10x red LEDs 10x Green LEDs 10x Orange LEDs 10x blue LEDs 1x9VArdunio battery connection 1x registration card 1x90 degree 40Pin header 1x40 Needle Needle 1 x65 jmper wire 1x40 pin cable