Even with so many components provided, solid quality is definitely the most important for a kit.The kit is suitable for those who to learn programming and more to embark on the first step of the electronic journey.Perfect and gift for , family or children who are obsessed with electronic products.colour: as shownMaterial: metalPackage Contents:5 x yellow 5 x green 5 x red 1 x RGB LED1 x thermistor1 x tilt switch2 x photoresistor10 x Male to Male Cable30 x 3 types of resistors6 x push button switch1 x potentiometer (10K)1 x active buzzer1 x passive buzzer1 x 1 x 1 Digit 7 Segment Display1 x water level detection sensor module1 x Sound Sensor Module1 x Soil moisture sensor1 x Obstacle Avoidance Module1 x USB cable1 x plate1 x for R3 CH340Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.