sea pebbles (1)high silica (2)good hardness (3)grind medium ... price(5)bearable 1.Product:Pebbles/Cobblestone/Natural pebbles/Sea pebbles2.Size:small,middle,big3.Packing:in bulk/ton bags&pallets/ton ... southeast asian,japan, korea,middle east, north africa and etc.world famous ceramic company toto beijing and indonesia branch, endeka ceramic ... enjoys real good eputation in china and around he world.