Plastic balls (numbers 1 - 100) are sturdy and easy to read; Ball size: 0.87 inch (22 mm) in diameter; This allows you to check the numbers that have been called without the balls rolling around or onto the floor The board is printed with the numbers 1 - 100, and there are spaces for putting the corresponding balls underneath their numbers; Foldable board: 14.2" x 10.6" (when opened); Drawsting Canvas bag: 9.5" x 7.2" Put the balls into the bag, and then draw them at random and place them on the checkboard for bingo game. Good for raffles, drawings, and bingo games during celebrations, events, and game nights Casino Night Must Haves. Get your crowd going with this Raffle Balls Number Set (subset of numbers can be used as bingo balls as well) ! These numbered balls are the perfect way to pick raffles, drawings, and bingo games quickly and easily during celebrations, events, and game nights. 1-100 balls included. Plastic balls are 22 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!