UV Invisible Ink Contact Lenses to See Marked Cards in Cards Cheating Pupil diameter:4 mm Once you have the plastic

Once you have the plastic bicycle invisible ink playing cards

facing the scanner to the edge of the poker cards

so they need a special sunglasses to see invisible ink

It has different quality standard to meet the different needs

you need to have a partner who can read the invisible marked decks in another room for you

UV Invisible Ink Contact Lenses to See Marked Cards in Cards Cheating Pupil diameter:4 mm Once you have the plasticModel UV contact lenses Pupil diameter 4 mm, 6 mm, 9 mm, 12 mm Water content 50% Validity period About 1 year Central thickness 0. 06 0. 10mm Applicable people all of the users UV marks are fluorescent but transparent, the marks can be seen only under an ultraviolet light. If there has a deck of cards with UV marks on the back, how can we see the invisible UV marks? Thanks to the modern technology, with the help of theUV invisible ink contact lenses,