Big Swing Message Board G6445 The Big Swing Message Board is the perfect mobile announcement center. Lightweight and easy to use, featuring a 24″ x 36″ chalkboard on one side and a wipe-off marker board on the other side. Sturdy base and solid birch posts with locking hardware. Adult assembly required. Made Of: Birch solids, write-on wipe-off marker board Dimensions: 32 W x 25 D x 44 H.