Hello. I uploaded a model with the following dimensions: cm: 1.5 w x 6.8 d x 2.4 h / 4.30 cmÂ³ This becomes available in many materials but not in full color sandstone. It IS available in regular sandstone. Isn't regular sandstone a different finish of the same material? Why is sandstone available and full color sandstone isn't? The walls are 2mm at its thinnest. Please help.