Bingo Balls - Economy Set - Double Number in Circle - 1 1/2 inch size - B1 to O75. The bingo balls are 1 1/2 inches in diameter and come in a set of 75 numbers, ranging from B1 to O75. The numbers on each ball measure 3/8 of an inch tall and are printed on both sides. The balls are flat white in color and have a non-glare finish. 

These bingo balls are considered an economy set because they are more affordable and suitable for occasional use, typically around once per month in bingo cages. However, it's important to note that they should not be used in air blower machines, as they may not be compatible or safe for such equipment.

Bingo balls should be changed every several years. Make sure to replace them with the same size as the ones compatible with your bingo cage or electric blower.