I can say that wood bathtubs and sinks are super trendy right now, and this bathtub is right one of them. One of the most well-respected design awards in the interior design sector, the 2015 Interior Innovation Award, has been awarded to Nina Mair for the solid wood Shell bathtub. The Shell bathtub is carved from a solid block of aromatic walnut using a precision CNC milling machine. The final form is refined, polished and oiled by hand many more times. With extremely high precision and a great love of detail, this concept is at the edge of what is possible – a wood bathtub cannot be made any more delicate.