S-Lon (Superlon) Tex 210 is a .5mm 3-ply, twisted nylon, multi-filament cord. Use for 6, 8, & 11/0 seed beads or other beads with at least a .8 mm hole. It is great for bead knotting, bead crochet, leather wrap bracelets, Kumihimo, and micro-macrame jewelry.