Protection your lenses for Insta360 ONE X3, safeguard from dust and scratches. Please note: Lens Guards for Insta360 ONE X3 cannot be used underwater, otherwise the lens will fog up and affect your photos or videos. 1, Before use, make sure lenses for Insta360 ONE X3 are clean and dry. 2, Upon removing the Lens Guards for Insta360 ONE X3, apply new adhesives before placing back on your ONE X3. 3, The Lens Guards for Insta360 ONE X3 are splash-proof, but are not designed for underwater use. Use the Dive Case for underwater shooting instead. 4, When you want to remove the lens guard of ONE X3, be careful not to scratch the camera lens and screen.