MRT UNWAXED LINEN LACING CORD, flax twine, 100% linen, 8 ply cord.
I know there are rug braiders out there who are looking for linen rug warp to lace the braids together. I'm sure there are many other uses, too...upholstery for example. Also called linen yarn, thread, twine, string. This is very similar to the old Braid-Aid thread, same size - only waxed instead of unwaxed.
8 OUNCE ROLL
THESE ARE APPROX 2-3/4 IN DIAMETER AND 4" TALL