1.J-Deal 5x Pcs SG90  Micro Servo Motor 9G RC Robot controls*4

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2.Adafruit GA1A12S202 Log-Scale Light Sensor *4

 

3.Pistons *4

 

4.Wooden sticks *4

 

5.Foils to wrap the sticks to hit the screen

 

6.Ipad *1