Quantity   Component name
2 × NE555 TIMER IC
2 × 470KΩ POTENTIOMETERS
3 × 1KΩ RESISTOR
2 × LED Fiber Optics / Emitters
1 × 0.01uF Capacitor
1 × 0.1uF Capacitor
1 × 10uF Capacitor
1 × 9V Battery