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 friends, family or children who are obsessed with electronic products. colour: as shown Material: metal Package Contents: 5 x yellow 5 x green 5 x red 1 x RGB LED 1 x thermistor 1 x tilt switch 2 x photoresistor 10 x Male to Male Cable 30 x 3 types of resistors 6 x push button switch 1 x potentiometer (10K) 1 x active buzzer 1 x passive buzzer 1 x 1 x 1 Digit 7 Segment Display 1 x water level detection sensor module 1 x Sound Sensor Module 1 x Soil moisture sensor 1 x Obstacle Avoidance Module 1 x USB cable 1 x plate 1 x for R3 CH340 Only 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.