Exclusively from Magical Tools:

Many years ago I watched a Holiday on Ice show in which they made it seem as if a stone column was rising out of the ice. I applied my thought to making it appear that a stone pedestal rises out of the stage. Two versions of this table are available. One versions, Item SP802, rises with power provided by the performer. When the table reaches full extension it locks into the open position. The second version of the table, Item SP803, works the same way but the power is provided by a small motor triggered by a floor mounted foot switch or a remote control (Option R). The latching mechanism is the same in both tables. These tables are part of the Special Products Plan. They are available from us directly or by special order from selected Special Products Dealers only. Plans are also available Item SP802P.