Specification: O.D. 16mm/0.63, I.D. 12mm/0.47, length: 500mm/1.64ft; Color: high transparency. PETG tubing for PC water-cooling system. PETG tube fit for indoor and outdoor PC water-cooling configurations. Round PETG tubes are easy to cut with a fine-toothed hacksaw (not included) and the material also can be recycled and re-use. Please note: After cutting the tube to a suitable size, please perform primary grinding on both ends of the tube body, be sure to keep the cut smooth