Plastic chips come in two sizes: 3/4 inch and 7/8 inch. The plastic bingo chips have a diameter of 7/8 inch, meaning they are 7/8 of an inch in size. The magnetic bingo chips are also 7/8 inch in diameter, the same as the plastic chips. However, these chips have a translucent, see-through area that measures 3/4 inch in size. Players utilize a bingo wand to easily pick up the magnetic bingo chips. The wand's magnetic properties allow it to attract and lift the magnetic chips from the playing surface. You can never have too many bingo chips.