Since it establishment in 1990, Seih-Ying Co., Ltd.-the glass road stud manufacturer has always strived in research and production on optical and special glass. Among our products, the “Tiger eye - 360° glass reflecting marker under Flash Brand” has become the most durable road reflecting marker with best quality in the world after continuous improvement over 23 years.

The 360° glass reflecting marker produced by Seih-Ying complies with traffic regulations in Taiwan and it is the first legal product that passes CNS 13762 and complies with requirements of Article 26 of Government’s Purchase Law in Taiwan. At the same time, Seih-Ying also passed the ISO 9001, CE certification in Europe, GB/T24725-2009 in China, EN1463-1 and EN1463-2 R1 under EU (after a year of installation, the luminance under test still reaches more than 99% of original luminance), as well as S1 (no breakage after 1 year of installation) ; thus our quality in production is reliable. Seih-Ying is the only company in the world that provides warranty of breakage rate within 5% over 5 years on highways and from results of practical test on Zhongshan Highway in Taiwan, it proves that lifetime of “Seih-Ying’s Tiger Eye” is more than 20 times of conventional square plastic markers. This can extensively reduce social cost of traffic jam due to replacement of markers and the rate of accidental injuries and deaths can be reduced also, since the workers do not have to risk their lives for maintenance.