... Slate Roof 1.size:40*20,40*25,50*25,60*30cm 2.color:black,green,rusty,grey 3.shape:rectangle,square,triangle, ... U shape Roofing slate, ... 10,9-12,12-15 and upshapeany shape,i.e.,rectangle,pentagon,scalloped shape etcholewith drilled hole,w/o hole Natural ... venations,headline your house. Black Slate Roofing Square Shape