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By certification 
2015 newest contact lenses for marked cards
Better option for blue eyes and green eyes.
think player who have blue eyes and green eyes have problem when they wear contact lenses.
It will make the eyes dark and people will notice them.
Now XF created a new and smaller contact lenses with diameter 8mm, it can make the eyes like normal.
So the people can see the invisble marking on marked cards with special contact lenses
Better option for blue eyes and green eyes.
think player who have blue eyes and green eyes have problem when they wear contact lenses.
It will make the eyes dark and people will notice them.
Now XF created a new and smaller contact lenses with diameter 8mm, it can make the eyes like normal.
So the people can see the invisble marking on marked cards with special contact lenses
