1. Before use, make sure lenses are clean and dry. 2. Upon removing the Lens Guards, apply adhesives before placing back on your ONE X4. 3. The Lens Guards are splash-proof, but are not designed for underwater use. Use the Dive Case for underwater instead. 4. To remove the Lens Guards, use the provided Prying Tool. Avoid scratching the lenses during removal. 5. Adhesive lens guard is specially designed to protect X4 lenses. With this lens shield, you can enjoy the fun of flying without worrying about scratching. Prevent lens from scratching, dust-proof, impact, and abrasion. (The impact protection effect is applicable when taking photos, such as dropping from a height) No need to disassemble to take photos; protection remains in place. Easy to install. Once pressed in place, it can be quickly removed. Compatible with the silicone cover: the transparent protective cover can be used together with the silicone protective cover for different styling options. Color: Transparent Material: PC Package Contents: 1 x Transparent Lens Cover Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. Measurement allowance is +/- 1-3 cm.