According to the description it uses DMC thread. Hope this helps. Kristie will put the numbers needed on the site if you ask her.

Hello,

I have listed the supplies for this design to our website so you should see them all listed now. The chart itself doesn't come with the actual floss. You have to purchase the floss separately from the chart but the floss is now listed so if you choose, you can purchase the design and the floss all at the same time. The chart itself will also have a color key and instructions so you will know what supplies you need. Hope this helps :) Thank you!

~Kristi @ ECS