Atlas? popular Code 83 Flex-Track is now being offered in a convenient 5-pack! Easy to install, Super-Flex Track enhances the realism of your layout. Unlike other flexible track which can become inflexible and kink, Atlas? Super- Flex Track can be formed and re- formed with ease to achieve the desired shape. This unique track can be shaped to form curves of any radius, is ideal for spiral easement curves and is easily manipulated to help you make your layout vision a reality.