Custom, Flashing LED Black Jack Light Up Pins. This is the perfect promotional item for casinos, gambling resorts, party planners, party supply stores and more! Use them for fundraisers, charity events or a fun party item! They are also great for hand outs, tradeshows, giveaways, party favors, nighttime events and any casino and gaming related gathering! Flashing LED Black Jack Light Up Pins come ready to use with 2 replaceable CR927 Batteries.