AVATAR® PTFE Vascular Grafts are made entirely from PTFE. The AVATAR® graft does not have an external wrap but instead has an open pore structure averaging 20 microns internodal distance, encouraging tissue ingrowth and making it soft and easy to suture. Helix grafts incorporate an external PTFE spiral support for use in applications where kink or crush resistance is required. Tapered and step tapered grafts can allow for better management of blood flow. All AVATAR® PTFE Vascular Grafts come sterile in dual barrier tray-within-tray packaging