wall material Color:green,grey,black,multicolor,yellow1Surface :split,natural,tumbled, honed ... .5-4cm, 10x20x1.5-3.5cmmm Export all kinds of China slate to USA, Canada,Germany, Spain, Saudi Arabia, Japan and etc ... delivery timeMin.orderSmall order for a trial is acceptableWe sure to supply high quality products and delivery timely.Welcome you inquiry ...