This product is recommended for those who work on a computer for long hours. I've tried various filters before, but this product was the most effective. The eye strain is completely different. There's no flickering, and the monitor screen is very easy to see. I am selling this because I recently purchased a new monitor. 【Product Description】 ・Reduces glare (visible light) and blue light, which cause eye strain, and achieves sharp, clear images with good contrast. ・Multi-layer coating is applied to the surface, and a single-sided AR coating reduces reflections. ・Cuts over 50% of blue light. Also cuts 50% of visible light, providing strong support for fatigue from long hours of computer work!! 【Size】 19.0W (430×280) SUPER DESK8 SLZ Made in Japan Retail Price: ¥43,050 HIKARI Direct Co., Ltd. 【Notes】 ・We cannot provide support after the transaction is completed. Please inquire before purchasing if you have any questions. ・Returns are not accepted after shipping.