Silk sutures with or without needles are sterile non-absorbable sutures.

the suture is provided dyed (blue and black) or undyed (clear)

Silk complies with the requirements of United States Pharmacopoeia (USP) for sterile non-absorbable surgical suture with/without needles and European Pharmacopoeia (EP) for sterile non-absorbable surgical suture with/without needles.