It was just one I had in an old sewing kit I bought on amazon I also got 2 extras at michaels that are blue DMC for ~$2
I cut DMC floss in half, I put 3 pieces through the needle and knot so it’s thicker when sewn on burlap
https://www.amazon.com/dp/B015KM765Y/ref=cm_sw_r_other_apa_i_-imgFbSNHB5XM
$14 https://www.amazon.com/SEWING-Premium-Sewing-Supplies-Spools/dp/B015KM765Y/ref=sr_1_3?ie=UTF8&qid=1492003079&sr=8-3&keywords=beginners+sewing+kit