The Cook Medical Lunderquist G46729 Extra-Stiff Wire Guide is a sterile, single-use device intended for facilitating the placement of devices during diagnostic and interventional procedures. It is made of a nitinol alloy with a PTFE coating, which makes it both flexible and kink-resistant. The wire guide has a atraumatic tip and a J-shaped curve, which helps to atraumatically navigate tortuous anatomy.