Basic Component kit for Arduino Kit Contents: 30 X 100 Ω Resistors 30 X 1 kΩ Resistors 30 X 4.7 kΩ Resistors 30 X 10k Ω Resistors 30 X 47 kΩ Resistors 30 X 100k Ω Resistors 30 X 1M Ω Resistors 2 X 3pin 15mm B10k Rotary Potentiometer 2 X 3pin 15mm B100k Rotary Potentiometer 3 X Red 5mm LED 3 X Yellow 5mm LED 3 X Green 5mm LED 3 X White 5mm LED 6 x 4pin 12x12mm Tactile Switch 9 x 12x12mm Round Tactile Button Cap (mixed color) 6 x 12x12mm Square Tactile Button Cap (mixed color) 2 x 40pin 2.54mm single pin male