Features: brand new and high quality This electronics module starter kit is used to improve the students' practical ability and develop intelligence and some small creativity, also for research and development about how to apply it to life. Really cool and perfect for you if you want to get into electrical engineering. With over 200pcs components including basic transistor and IC components. With a precision potentiometer with better quality. compatible for Arduino UNO, MEGA-. Nice starter kit with a fair number of components to for play with. Perfect kit for college projects in digital logic class. Specifications: Color: Multicolor Material: Iron Size: approx. 16x12cm/6.30x4.72in Note: The controller board is not included. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 10 x White LED 10 x Yellow LED 10 x Blue LED 10 x Green LED 10 x Red LED 1 x RGB LED 2 x Photoresistor 1 x Thermistor 5 x Diode Rectifier (1N4007) 5 x NPN Transistor (PN2222) 1 x IC 4N35 1 x IC 74HC595 10 x Button (small) 1 x Active Buzzer 1 x Passive Buzzer 1 x Precision Potentiometer 10 x 22pf Ceramic Capacitor 10 x 104 Ceramic Capacitor 5 x Electrolytic Capacitor (10UF 50V) 5 x Electrolytic Capacitor (100UF 50V) 10 x Resistor (10R) 10 x Resistor (100R) 10 x Resistor (220R) 10 x Resistor (330R) 10 x Resistor (1K) 10 x Resistor (2K) 10 x Resistor (5K1) 10 x Resistor (10K) 10 x Resistor (100K) 10 x Resistor (1M) 2 x Pin Header (40pin)