Adjustable, dual presentation stand. Interchangeable platforms measure 18w x 18d and 24w x 18d. Supports pneumatically adjust from 28-1/2" to 38-1/2" high and 34-1/2" to 44-1/2" high. Attached 16w x 13d x 13-1/2h storage box with removable shelf, locks for secure storage of laptop and LCD projector. 3" casters, two locking. Black vacuum-formed platforms. 33w x 24d. Shpg. wt. 93 lbs. Assembly required.