Gutermann Sulky Rayon 100m Gutermann Sale! from 285 /per Colour 1011 silver 1024 gold 1005 black 1051 green 1037 red Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. A high quality viscose machine embroidery thread. It has a stunning silk like shine. Recommended needle size 70-90.