5mm [0.20"] diameter x 1000mm [39.38"] light pipes available in several configurations.
Use continuous for shorter applications (under 686 mm [27"]) and tuned for longer. Tuned is a special version specifically designed to eliminate dimming in the middle of longer lengths.
Continuous can be cut to any length. Tuned can also be cut, but, should be done equally from both ends. Flex has a 1.5" minimum bend radius.
Note: If you need to clean fingerprints off of the pipes, do not use alcohol. Warm, soapy water and a microfiber cloth is suggested.