4-In-1 Play Yard New! Regalo 4-in-1 Metal Play Yard encloses a large 19 square-foot area! Can be configured into a variety of shapes and sizes to fit your needs. Also converts to a fire place guard, gate enclosure for extra wide openings or stairway barrier. Composed of eight metal panels that are 24 inches wide and 28 inches tall (each) , Easy take down and set up Convenient walk-through baby playpen design. Meets all current safety standards , Suitable for indoor use , Slat size: 2.25 inches.