S-lon is a nylon thread.This thread is also called Superlon, Super-lon or Tex 45.Size D.This size will fit through a size 11 beading needle.Each bobbin is approximately 75 yards (70m).12 bobbin mixture.Colours: capri blue, chartruese, dark green, green, grey, light blue, olive green, royal blue, sky blue, seafoam green, turquoise blue, and teal.The thread has almost no stretch.It is ideal for beading, bead loom warping, beadwork, etc.