slate,it is natural slate, color is black and stable, top surface is natural,and bottom is smooth,it is suitable for wall etc 1.model no:S19162.product name: culture slate3.brand-name:montary4.material:natural slate5.place of original:china6.color:black7.surface finish:natural finish,machine cut etc8.application:wall etc9.supply abilty:60,000m2/month10.delivery time:within 10 days after order ...