Waxed linen thread has been made popular by Stephanie Sersich. she uses it to finger weave, making her famous Spiny Knotted Bracelets and Necklaces.
If you have a chance, do take her class, she is a wonderful teacher and the technique is very useful. I believe Robin Atkins also teaches a finger weaving technique that this product can be used for.
.5 mm width. 4 cords. 50 gms on a spool, which is approximately 100 yards. This is Irish Linen, made in the USA.