Bingo dabbers are a type of pipe that use a metal rod to scrape bingo balls from the bottom of the bowl. They are most commonly used in American and Canadian style bingo.
Bingo dabbers are also occasionally used in British style bingo.
The metal rod is inserted into the bowl and the ball is scraped off the bottom. This is done repeatedly until the ball is released from the bowl.
The advantage of using a bingo dabber is that it speeds up the game by removing balls quickly. The disadvantage is that it can be difficult to get a good grip on the ball and it can be difficult to control where the ball goes.