Our quartz slabs of ColorStone brand are comprised of over 93% nature quartz, which are hard, strong, and resistant to scratch, shock and compression. Moreover, they are durable and maintenance-free, also resistant to heat, stain and acid. Come in a huge variety of colors, without pollution and radiation, "ColorStone" quartz stone is an environmental and ideal material for walls, floors and countertops. 1.Slab size:3000*1200mm;3000*1400mm;3200*1600mm; 2.Thickness:12~30mm; 3.Usual size:600*600mm;800*800mm; 4.Special size can be ordered by customers. And also the color. All the products can be use as tiles,slabs,floorings,countertops and engineering stone. Sample pictures are just for reference,please confirm the color with real products.