I accidentally bought the wrong size and have no use for it, so I'm offering it to someone who can use it. The following is an excerpt from the product description page: 【Easy to Remove】 YMYWorld Universal 27-inch 25-inch Studio Display Compatible PC Blue Light Cut Filter Computer TV Monitor Blue Light Cut Panel Glossy Specification LCD Protection Protector ●Filter size: 612mm x 356mm (Compatible with 27-inch LCD monitors, TV monitors, and game monitors) ※It can also be used for 25-inch monitors if the protruding part is not a concern. ※Not compatible with monitors with a top width of 2cm or more. ●Features ◎Blue Light Cut Blue light cut rate of 50%, which is said to be harmful to the eyes, and UV cut rate: 99.9%. Ideal for long hours of work to reduce eye strain. ◎High Transparency A glare filter with excellent visibility, with a transmittance of 92% and a UV cut rate of 99%. While cutting blue light, the color of the filter itself is suppressed. Also, because it has a glossy finish, the screen becomes glossy, and images and videos are displayed beautifully. ※However, it does not prevent reflections, so it is not recommended for use in environments where sunlight is likely to enter. ◎Easy to install and remove Simply hook this filter onto the monitor, so anyone can easily install it. A durable acrylic protective panel that protects your precious LCD screen from impact. Even if you replace your monitor, you can continue to use it if it is the appropriate size. Unlike adhesive films, you can use it only when you need it. ◎High Hardness Are you worried about children touching the monitor with their hands, scribbling on it, bumping into it with objects, or pets scratching the monitor? This filter is 2mm thick and has a surface hardness of 9H, so it firmly protects the screen from scratches and impacts. When you are not using the monitor, you can use the film for protection.