Check the listing for details. 2 Pack 23-24 Inch Computer Screen Blue Light Blocker for Diagonal 23,23.6,23..... Condition: New. Listed at 133.51 USD. Brand New 2 Pack 23-24 Inch Computer Screen Blue Light Blocker for Diagonal 23,23.6,23.8,24 Inch Monitor, UV Blocking Filter(21 1/4x13 3/8) for Eye Strain,Hanging Anti Blue Light Screen Protector Manufacturer model: 2 Pack: 23"-24" Diagonal BEFORE ORDERING1. Measure monitor diagonal size without edges. 2. Please check the size chart to confirm the correct variation you need.3. The width and height of ZYY computer blue light blocking screen protector 23-24 inch (23 inch, 23.5 inch, 23.6 inch, 23.8 inch, 24 inch) is width 540 mm * height 340 mm. (COMPATIBLE FOR IMAC 24 inch screen and Curved Monitors)ANTI BLUE LIGHT/UV/RADIATIONZYY computer blue light blocking screen protector adopted Japanese Fujimori nano-optical stacking technology, effectively blocking blue light 90%, UV blocking 98%,blocks other harmful lights 99%.PREMIUM QUALITYZYY Desktop computer screen protector for eyes protection with 8H reinforced acrylic materials, 5 layers of optical engineering protection with a high resolution view, real colors, scratch resistance, anti-fingerprint, Ultra-thin 2mm, explosion-proof.APPLICATIONEasy to use with Hanging type, ZYY anti blue light screen protector fitting on working, learning, playing games, watching TV and so on. Reducing eye strain, preventing myopia & dryness, hyperemia and so on, focusing on what you do, effectively improving your work and kid's learning.PROFESSIONAL SERVICERemoving the screen adhesive films on both sides before installing the blue light filter for the computer monitor. Welcome to contact us if any problem troubles you, Answer and solution you got in first time. Description Shipping and Handling Please allow 5-7 business days for the package to arrive, regardless of buyer location within the US. We will provide an online tracking number to you once the item has been shipped. It may take a few business days for our automated system to process the tracking number onto eBay. However, this will not affect the shipping times. Return Policy All our products are brand new and sealed. All items qualify for returns within 30 days of receipt. Feedback We take our reputation seriously. If you have any questions or concerns, please contact us and we will respond back to your message within 24 hours.