Evolution is a very unusual bathtub designed by Studio Tholl. It is presented as a Marmer composite bathtub that is inserted into an elongated oak wood cage. The whole design idea was to show the evolution of a chair in a bathtub. The logic here is pretty simple. A bathtub is something you sit in, so it can be interpreted as a sitting object. The look of a chair and the requirements of a bathtub were used to make this development. The size of the bathtub is 190 cm long x 85 cm wide x 84 cm high and is therefore a really comfortable seat in the bathroom for everyone.