Silk Embroidery Ribbons Japanese 100% Pure Silk Ribbon These soft luxurious silks are available in 4mm and 7mm widths. 185 stunning colours in the 4mm width and many of these colours in the 7mm width. Pure 100% Silk in 4mm and 7mm widths Stunningly hand-dyed in colours to match the "Silk n' Color" range of embroidery threads by "The Thread Gatherer"