Silk suture 3-0, FS-1 needle, 45 cm black filament Pack with 36 sutures Non-absorbable - biological - multifilament. A braided non-absorbable, sterile, surgical suture produced from cocoons of the silk worm (Bombyx Mori). A wax coating gives "hand" to the silk suture. The silk suture provides tensile strength in tissue for up to 3 months. It is generally coloured black or ivory. Manufacturer: Ethicon / Johnson & Johnson