New, unused item. It is sold on a certain通販 site for 5,090 yen (as of 2025/9/28). I am selling it because I no longer need it. I am also selling it elsewhere, so there is a possibility that I may suddenly cancel the listing. I will ship anonymously. You can trade with peace of mind because you don't have to write your personal information. ■Product Name 21.5 inch 16:9 Magnetic Anti-Spy Filter Privacy Filter Desktop Display Monitor Blue Light Cut LCD Protective Film Easy to Attach/Detach Anti-Glare Double-Sided Use ■Product Details Size: 21.5 inch 16:9 【Imported Materials・Anti-Spy・Privacy Protection】The screen appears black from angles outside of a viewing angle of about 60 degrees (30 degrees left and right) centered on the front of the computer screen, so you don't have to worry about people seeing your computer screen. This product uses carefully selected imported materials and achieves an excellent anti-spy effect. It is resistant to bending and warping during transport, so you can attach it to your computer with confidence. *Inexpensive filters on the market can make the screen dark and make it difficult to see small text. They are easily bent during transport and lack durability. 【Blue Light Cut】The anti-spy LCD protective film cuts blue light by about 59%, so you can use it for long periods of time with peace of mind. It cuts ultraviolet rays by about 99.9% and reduces eye fatigue. It has a transmittance of 69% and maintains a brightness that is easy on the eyes and easy to see. 【Reflection Reduction】Anti-reflection (AG processing) prevents reflections on the screen. 【Antibacterial】Antibacterial processing suppresses the growth of bacteria and keeps the screen clean at all times. 【Double-Sided Use】One side is glare (glossy) and the other side is anti-glare (non-glossy) processed, so you can choose the one you like. 【Guards important information from prying eyes】Even when working in places where many people gather, such as cafes, Shinkansen and trains during business trips, co-working spaces, and offices, you can securely guard against the eyes of those around you and ensure your privacy. 【Contents】Universal 21.5 inch 16:9 (dimensions 479*273mm) Anti-Spy Filter, Magnet Seal, Adhesive Tape, Iron Plate 【Screen Size Confirmation】Even if the size is correct, the monitor size varies depending on the model. Please be sure to measure the screen size using the method shown in the product image.