Lava stone is basalt with noticeable holes(ranging from 1mm to 20mm).It has a density about 2450kg/m3,the structure of these holes gives Lavastone many characteristics,e.g. skid-proof,breathability,insulation,etc. (1)Finish:Sawn,Honed,Polished,Bush-hammered,Sandblasted ect. (2)Dimensions:According to customers requirement. (3)Packing:Standard export wooden crates with foam inside. (4)Material:Lava stone (5)Delivery Time:Up to the quantity. (6)Shipping Port:Haikou,China MAXFINE,get the finest lave stone here. Please feel free to contact with us for more information.