Quantity   Component name
1 × 555 Timer
1 × 100 uF Capacitor
1 × 330 kohm Resistor
1 × 150 ohm Resistor
1 × Slide Switch
1 × 10 kohm Rotary Potentiometer
9 × 5 mm LEDs
1 × 9V Battery Clip
1 × 9V Battery