1. use, make that the camera's lens is clean and dry. Always install the Lens Guard in a clean and dry environment. Any particles on the lens or Lens Guard may affect the results. 2. If you remove the Lens Guard from the camera, apply a new double-sided adhesive re-installing the Lens Guard. 3. The Lens Guards are only splash-proof and are not designed for underwater . If used underwater, the Lens Guard's inner side may fog up and the double-sided adhesive may lose stickiness. also remove the Lens Guards using the Dive Case. 4. not to scratch the camera lenses and screen as you remove the Lens Guards. Material: plastic colour: black + transparent Package Contents: 2 x Sticky Lens Guards Only the above package content, other products are not included. Note: Light 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.