These cards are seen by UV contact lenses and UV sunglasses.

This is one regulation-bridge size deck that measure 2.25-by-3.5-inches (W x H), and are made of practically indestructible PVC plastic material for years of use. Completely washable via a quick wipe with a damp cloth, the cards won't soil over time. The decks come complete with a hard plastic storage and carrying case. The deck includes 52 cards and 2 jokers. 

• 100% PVC plastic, these cards will last for years outlasting paper cards up to 50 times
• Bridge sized (2.25 x 3.5 inches)
• Completely washable, you don't need to worry about soiled cards. A quick wipe with a damp washcloth, then dry and they are ready to go
• WSOP design