DandyLine 0.20mm White 25m Spool. Ideal for stitching and detailed beadwork, Dandyline is based on a thread that provides maximum strength and flexibility for any bead stringing and bead weaving project. It is made specifically for beading using an advanced synthetic material, called Spectra, that provides extreme softness, flexibility and near zero stretch. DandyLine is 100% waterproof and will not stretch, and is excellent choice for Toho seed beads. Break Strength 9.0kg (20lb).