... Mountain,with rich stone resources,we can produce a range of stone products with best quality, ... lower factory price. Pebble stones from our factory sell well in many countyies. ... pebble stonematerialnatural stone:granite,sandstone,limestone,marble etccolorwhite,black,red,green, mixed,pinksize8-15mm,1-2cm, ... to cooperate with you,my friend from everywhere. black machine tumbled pebble