These 12 yellow Dab-O-Ink 4 ounce size (110ml) bingo dauber has a full color wrap around sleeve design with an eye-catching appearance. Each sleeve is color-coordinated with the ink color's name on the bottle. The bottle has an easy to hold oval "pen-grip" with an easy flow adapter! These daubers have the U.S.A. standard size tip that is easy to remove and replace. Daubers are more convenient than chips because you don't have to be concerned about chips sliding off the card, causing you to lose track of which numbers have been called. These ink markers are name brand bingo daubers perfect for bingo nights! Made in the U.S.A.