-Only for A53/ A52 / A51 /S20 FE, Not for any other models.*Note* Quick and easy installation-no bubbles 1-Clean and dry the screen with the included damp cloth and dry cloth. 2-Use the cleaning sticker to clean the screen.Make sure there is no dust on the screen. 3-Carefully remove the back of the screen protector. 4-Align and stick the film to the screen.Make sure the four corners are aligned. If not, please reinstall it. Otherwise, bubbles will appear on the edges or incomplete installation.A small amount of bubbles will disappear automatically after 24 hours. Please don't worry. 5-Firmly press the edge of the protective film for about 4-5s to avoid the edge from lifting. Product Features: — High touch sensitivity brings a "real touch" feeling. — 3D arc fit, suitable for most mobile phone cases. — High definition, prevent rainbow effect and film yellowing. — 9H hardness tempered glass can strongly resist abrasion, scratches, impact and drop; it provides long-lasting protection for your Samsung Galaxy A53/ A52 / A51 /S20 FE. — The oil-repellent coating reduces fingerprints and surface grease accumulation.