English 
Poker Cheating Sunglasses That Can See Through Playing Cards
Poker Cheating sunglasses are well known as the anti poker cheating device for poker games or magic tool for the magic show.
Poker sunglasses, also called as marked playing cards sunglasses. It is a pair of glasses made with high quality material and processed by special sensitive material coating. The special coating firmed as a filter, which can filter some kind of light wave.
It is like an imaging agent which absorbs or alters external electromagnetism to help human eyes reading something unable to see regularly.