Abstract: A square bingo dobber is set forth to fully indicate, framed by coloration, a bingo square. The dobber of the instant invention utilizes an internal square porous applicator to impart a transparent color, such as yellow, to a central portion of a bingo square to be marked. A perimeter square ring applying an opaquecoloration frames the central square pad to highlight the central coloration and furthermore demarcates the particular square from surrounding ones. A central reservoir provides coloring fluid to the central square dobber portion and a surrounding reservoir thereabout provides fluid to the aforenoted ring-like dobber portion.