Bingo Shutter Cards use a sliding window to cover the numbers. No chips or daubers are needed with shutter cards. The bingo shutter cards we offer are very good quality. The shutter cards stitched around the edges will last for many years. Bingo shutter cards come in a variety of theme designs including bingo balls, patriotic, money, and shamrocks. Bingo shutter cards are also available with large print numbers that are easier to read.