A small nylon part called Radax is placed in-between the "vertebra" links to prevent undercutting the minimum bend radius of cables or hoses. Designed for use on robotic equipment, the Robotrax design allows for the entire system to be replaced in minutes.
KabelSchlepp America, 7100 W. Marcia Rd., Milwaukee, WI 53223, (800) 443-4216, kabelschlepp.com