Turning Stone doesn't have real slot machines they use Keno based machines made to look like slot machines, but they don't take coins They call the MULTIGAMES.

Instead you place money on your account and use your slot card like a debit card.

These Free cards are promotional cards. You might get a coupon to get $25 in free MULTIGAME play. They give you this card. You can play off the card but you can only cash out once and you only get paid for whats on the card above the starting amount.