[Installation] Attach the bottom sticker on the body portion by aligning it with the LED indicator light. The top sticker upside down on the bottom portion so that the adhesive side faces upwards on the body portion. Close lid over the upward facing dust guard so that it sticks perfectly to the inner ceiling once shut. [IMPORTANT NOTE] It may take you some time and effort to align Dust Guard stickers on AirPods, but if you want to keep your airpods clean and beautiful, it will be well worth it. (Only Fit for AirPods Pro, Do Not Fit for AirPods 1st,2nd) [PERFECT DUST-PROOF FILM] AirPods Pro case gather a lot of iron/metal dust over time causing permanent black marks. Elobeth Dust Guard sticker as a buffer between your case and the metal dust. [LUXURIOUS-LOOKING] Keep your AirPods tidy and looking beautiful all the time! Elobeth Dust guard has various colors. [12-Month Warranty]: We promise 30-day refund guarantee, 12-month warranty on manufacturing defects & excessive wear; please kindly contact us if got defective items or wrong items, and we take care of all quality-related issues with a replacement or refund.