【Compatible Models】: This is a privacy filter for 13.3-inch 16:9 (294 mm wide x 165 mm high) laptops. *Please note: Before ordering, measure the length and width of your monitor's visible area. 【High Transparency】 While securely guarding against prying eyes, the transparency is moderately adjusted to 75%, so you won't feel any discomfort even when wearing it continuously. 【Privacy Protection】 With a 60° viewing angle, you can see comfortably as usual from the front, and the screen appears black from angles outside of 60°, preventing prying eyes and allowing you to operate your computer with peace of mind. It's helpful for improving work efficiency on the Shinkansen, in cafes, co-working spaces, offices, etc. 【Double-Sided Use】 This product can be used on both sides. The glossy side has higher transparency and is suitable for viewing high-resolution videos and images. The other side (matte side) has an anti-reflective coating, which reduces reflections from fluorescent lights, etc. Although there are differences in the surface, the privacy protection effect is the same on both sides. You can use it according to your environment. 【Blue Light & UV Cut】 Blue light cut rate: 59%. Excessive exposure to blue light can lead to "digital jet lag," potentially causing dry eyes, eye strain, and, in severe cases, headaches and sleep disorders. This product blocks approximately 59% of blue light and cuts 99.9% of UV rays, protecting your eyes from harmful light for those who work on computers for long periods.