There are a lot of brands of floss out there, but we have found Danville's to not only have great selection of color but they also wrap well, lay flat and doesn't fray as easily as some.
Rayon, 4 strands, 10 yards per spool
WARNING: Cancer & Reproductive Harm -
This product may contain chemicals known to the state of California to cause cancer, birth defects or other reproductive harm.
http://p65warnings.ca.gov/
