... 30mm- 60mm per piece Weight: 40KG~60KG per square meter white polished cobblestone, pebble natural stonecolors moreSize: about diameter 30mm- ... .size:Available in all specifications as your require3.color:White,black,red,yellow,multicolor,striped.ect4.design:Up to ... Polished, natural, machine-made, tumbled, crushed. Ect6.shape:Round, oval, irregularity. Ect7.quality:Shiny clean, no dust, non -toxic8. ...