1. use, make lenses are clean and dry. 2. removing the Lens Guards, apply new adhesives placing back on your X3. 3. The Lens Guards are splash-proof, are not designed for underwater use. Use the Dive Case for underwater instead. 4. To remove the Lens Guards use the provided Prying Tool. not to scratch the lenses as you remove the Lens Guards. 5. adhesive lens is specially designed to protect ONR X3 lenses. With this lens , you can enjoy the of without worrying about scratching. Colour:transparent Material:PC Package Contents: 1 x Lens Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.