5/0, 27" Chromic Gut Absorbable Suture with Reverse-Cutting C-6 Needle (3/8 circle), box of 12 Suture sets. Naturally brown colour; undyed. Has a size of 5-0. 19mm circle reverse cutting. 12 / Box. Equivalent to Look 557B. HSB – House Brand Dentistry sutures can be trusted by surgeons to streamline the stitching process. Key features of the 5-0 surgical chromic gut suture are its naturally brown, undyed colour and 19mm circle reverse cutting. HSB sutures help improve patient outcomes, optimize healing, and maximize operating room efficiency.