The stainless base module is formed by a vertical plain bar for the wall fixing and by two stainless steel vertical plain bars joined by pierced cylindrical spacers in order to work together. On the plain bar top part are situated the stainless steel cylinders in support of the glass step. These cylinders, for static and aesthetic reasons, are “drowned” inside the step formed by three sheets of glass. This system allows to have a lightness effect but, in the meantime, it is conceived to offer the maximum structural solidity.