• Avoid exposing the product to large quantities of water (Showering or swimming) becuase it might affect the clarity of the secret photo.
• Secret photo are like sungless, you can wipe them with piece of soft cloth to have them cleaned.

Bring the curved side of the stone close to your eyes (as close as possible) to see the secret photo.

Surrounding area should be good lit.

Bring the camera to the curved side of the stone.

Bring the photo flashlight to the back side of the stone (as close as possible) to project the image on the wall.

Surround area should be dim or dark.