Review on LFOTPP Car Navigation Screen Protector for 2017-2018 Elantra GT: Premium Tempered Glass Film, 8 Inch Blue Link Display Guard - 9H Hardness, Ultra-Durable Protection by Lamont Wilson

Please do not follow the installation instructions that accompany the product. Comes with a suction cup which is said to help place the guard. Well, the suction cup leaves a huge air bubble that you don't even know about until you peel off the protective film and remove the suction cup. Due to the suction on the cup, the safety glass will always be slightly concave and will eventually have an air gap/bubble once installed. EDIT: The bubble decreases in size over time, but doesn't completely go away.