It is specially designed for 6.8 inch Kindle Paperwhite (11th Generation-2021) and Kindle Paperwhite Signature Edition. Installation steps 1. Before attaching the screen protector, please clean the screen using the kits in the package first. 2. Remove the protective layer. You can stitch it to match all the cutouts and borders. If a mistake was made, remove it and try again. You can finish it perfectly without installation experience. 3. If there are bubbles, please try to press the bubble with a little force, and try to use a ruler or a credit card to help you. solve the problem. （Don't worry if there are small bubbles left after installation, it will disappear in 24-72 hours. If the corners or edges are raised, press it with your finger.） Package includes 2 x Screen protector 2 x Wet/dry wipes 2 x Dust removal sticker