millstone 1. old trough,flagstone,stone carving 2.reclaimed,used many years ago 3.hardness MillstoneAntique Millstone:material granite,sandstone,limestone,marble,lava stoneSpecification Dia:20-180cm,Thickness:10-40cm,various for your choicecolorwhite,black,green,red,pink,yellow,grey……finishing hand-carvingusageIndoor and outdoor decoration,garden,paver,constructionfeature(1 )excellent weather ...