Abstract: A device to enable people to play the sports game of step/curb ball at virtually any site (location). The unit is designed to be filled with water to impart mass, density and stability so that resilient (rubber, tennis, ect.). Balls thrown (pitched) at it will be reflected onto the field of play at high velocities and long distances-creating a multitude of Baseball-like situations ranging from "strike-outs" to "grand-slam home runs". This portable set of steps will have a removable, netted backstop to prevent errantly-thrown and/or deflected balls from travelling behind the unit into foul territory. Retractable foul lines will emanate from the base unit, by means of spool mechanisms affixed to each of two (2) molded angular projections positioned at each front-side of the base unit just above ground level. When these foul lines are unwound from their spool mechanisms, they will automatically form the prescribed boundaries/dimensions of the Baseball-like playing field.