6 different designs
These cards are used in optical retail shops to demo polarized sunglasses. A hidden image appears using the polarized sunglasses which is invisible to the naked eye or with regular sunglasses. The client is immediately convinced that the sunglasses are "special". The effect is truly spectacular and they are great for teachers to use in a class.
We have a limited supply of six designs in stock: sailboats, fish, mountains, windsurf, fisherman and siren. They are 114 mm x 76 mm (4.5" x 3"), except the siren that is 114mm x 102mm (4.5" x 4") They sell in pairs of two different designs (if ordering more than one pair we will make sure they are different).
If you need production quantities (1000+) of your own custom design, please inquire (use contact form on the right box).
