Safety First / Railing Stepladder

The railings of stepladder could provide the user with a suitable auxiliary for climbing up or down.
The side and top railings of the stepladder itself will be automatically opened or closed.
The design concept originated in that when the children are playing with the elephant slide.
When the children are climbing the step of this elephant slide, they will grip the railings and slowly climb.
Around the top, it has the suitable railings to ensure the safety when they are standing.
Shaft body - the main function could provide the railing with up or down automatically.