Casino Night Must Haves. Get your crowd going with this Raffle Balls Number Set! These numbered balls are the perfect way to pick raffles and drawings quickly and easily during celebrations, events, and game nights. One bag of 100 raffle balls. Balls are numbered 1-100. Plastic balls are 20 mm. Make your casino nights gathering one to remember with games and gaming supplies. Stock up on all of the casino supplies you need to make your party a success!