It is made of light but firm aviation alluminum alloy so it is easy to assembled, move and keep. And its weight is only one third of the traditional one made of steel, which avoids any damage to the floor.
It is a safe and firm platform with all joints tightly engaged. With new cold-work technique of in-expand and out-compress, oer joint is distributed with 4100- 4400 Kg, much stronger than the permitted one with 2100KG. The load of the 12M Double Deck reaches about 500Kg. Each deck can stand the weight of 272Kg and the complete tower of 900Kg.
It is allowed to be erected on escalators and stairways. And the castors prevent any damage on the marble or wood floor and the lawn. And it is designed for use in confined spaces such as narrow alleyways and corridors. And it can be assembled in many ways.