Platforms form the component elements of the stage. They are constructed out of aluminium profiles and the floorboard is made of waterproof plywood covered with slip-preventing net. Either the telescopic or screw-regulated supports that are fixed to the platforms allow for the height adjustment within 100 – 150 cm range. A solid aluminium frame has a projection all along its periphery permitting the connection to the other platforms. The assembly does not need any tools.