The very limited Fluorescent Squared playing cards is made by MPC and is maxed out with fluorescent ink. As well as both card front and back of cards which is printed with our highly fluorescent ink, we have fluorescent gilded them too. What's more, both the inside and outside of the tuck box is fluorescently printed as well. The cards are produced on MPC’s M30 linen air light card stock with their renown BETA finish creating a deck that is perfectly smooth, snappy, springy as well as flexible, which is needed for all those complex card movements as used in cardistry and sleight of hand card magic tricks. A deck that glows on all sides under UV light Put the Fluorescent Squared playing cards under direct sunlight, the deck will glow. Put the deck under UV lighting and be prepared to shock everyone. The Fluorescent Squared deck is specifically made for using in dark environments such as bars and nightclubs where you can show off a magic trick or 2 under their black lighting or UV spot lighting. Let’s put it this way, even if your card tricks don’t impress, the Fluorescent playing cards are sure to bring you straight into the spotlight as once you set your eyes on them, it’s hard to not look at them in awe.