Features: L0 Basic Starter Kit includes:1xEuropa,1xButton,1xRGB; L1-Basic Starter Kit includes:1xEuropa,1xButton,1xRGB;2xSensor,1x18350 Charging-Module;1xMicro USB Cable,1xOn/Off Switches,1xBuzzer Sensor; L2-Basic Starter Kit includes: 1xEuropa,2xButton,2xRGB;2xSensor,1x18350 Charging-Module;1xMicro USB Cable,2xOn/Off Switches;1x0.96OLED Screen,1xRTC Clock,1xBuzzer Sensor,1x 8x8 Screen ,and other; Esp8266wifi Module-Python Development Board Micropython Iot-Kit Compatible for Arduino; The most economical kit to starting learning electronics for the beginners who are interested. Specifications: Material:Metal Option Type:L0 Basic Starter Kit,L1-Basic Starter Kit,L2-Basic Starter Kit, Note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1xBasic Starter Kit