Need some clear, tough tubing for a project? These MECCANIXITY polycarbonate tubes are perfect. They're crystal clear, so they're great for lighting projects—imagine LED strips inside—or for seeing liquid flow in plumbing or cooling systems. Each tube is 150mm long (about 6 inches), with an inner diameter of 5mm (0.2 inches) and an outer diameter of 6mm (0.23 inches). The wall thickness is 0.5mm. Polycarbonate is seriously impact-resistant, so these won't crack easily. You get five tubes in a pack. They're rigid, which makes them good for structural parts in models, DIY crafts, or even as small organizers. You can cut them to your desired length with a fine-tooth saw or tubing cutter. Just check the dimensions before you buy to make sure they fit your needs. Whether you're building a custom lamp, a water-cooling loop, or a science project, these tubes are versatile, durable, and really transparent. Handy to have in your workshop.