Ethilon Non Absorbable Black 75cm, 2/0, 26mm 3/8 Circle Reverse Needle - Pack of 36 ETHILON Suture is nonabsorbable, sterile surgical monofilament suture composed of the long-chain aliphatic polymers Nylon 6 and Nylon 6,6. ETHILON Suture is dyed black or green to enhance visibility in tissue. ETHILON Suture is indicated for use in general soft tissue approximation and/or ligation, including use in cardiovascular, ophthalmic, and neurological procedures.