Introducing our innovative 4.0mm side glowing optic fiber product that sets the industry standard for quality and performance. The cutting-edge technology used in its design ensures superior brightness and consistent illumination over long distances. Our optic fiber is made from high-quality materials and is environmentally friendly. As a factory, we take pride in providing exceptional products and unmatched customer service. Whether you're looking to upgrade your lighting system or searching for a cost-effective solution, our 4.0mm side glowing optic fiber is the perfect choice. Order now and experience the best in optic fiber technology!