| The popular game of chance and strategy of | | | | shutters can be shut every time a number is |
| Bingo is played with game cards that are widely | | | | called. These Bingo cards are built for multiple use |
| known as Bingo cards. These cards may have | | | | and eliminate the need for markers. |
| pre-printed numbers on them to they can be | | | | For each game, every player will be given one |
| entirely blank. They can be made of paper or | | | | Bingo card which has a 5 x 5 grid, consisting of 25 |
| other disposable material which are good for | | | | squares in total. Every square is assigned a |
| recycling. The Bingo card is no longer valid once | | | | number except for the middle square which may |
| the game is over and can be thrown away. | | | | be imprinted by "free" or "Bingo". This indicates |
| On the other hand, there are organizers who | | | | that the free number is a bonus to the player as |
| used a different kind of Bingo cards. The player | | | | it can be used for any number being called out. |
| for more than one game can use these game | | | | Usually, the very first column from the right of |
| cards, typically made of plastic of hard cardboard. | | | | the card is assigned the letter "B" and contains 5 |
| This is because the material used is tougher and | | | | numbers from the range of 1 to 15. Then the |
| the player only has to keep tab of the numbers | | | | remaining four columns are assigned with the |
| played by using removable tabs. This can mean a | | | | letters, "I", "N", "G", and "O". The 2nd column will |
| reduction in costs for the organizers in the long | | | | contain 5 numbers from the range of 16-30. This |
| term as the Bingo cards can now be reused. | | | | sequence goes on for the remaining 3 columns till |
| In addition, there are others who use a shutter or | | | | the last column contain 5 numbers in the range of |
| fingertip card, pre-printed hard cards whose plastic | | | | 61-75. |