SunBurst
![Sunburst thread](https://i0.wp.com/juliessuperiorthreads.com.au/wp-content/uploads/2010/06/sunburst.270.jpg?fit=270%2C200&ssl=1)
SunBurst: Sunlight-activated colour changing thread
![Sunburst thread](https://i0.wp.com/juliessuperiorthreads.com.au/shop/images/cache/sunburst/sunburst.270.jpg?resize=270%2C200)
Sunburst thread
Indoors the thread is white. Expose it to sunlight and it instantly changes to colour.
Go back inside and the colours change back to white.
Sunburst thread
Indoors the thread is white. Expose it to sunlight and it instantly changes to colour.
Go back inside and the colours change back to white.