1) Yellow Polished Stones 2) 100% natural, safe for fish 3) White,yellow,black, ... ,snow white 4) All kinds of size OK Yellow Polished Stones,natural pebble,polished stone Product name: Yellow polished stone/pebble ... : ChinaFeatures:1) 100% natural pebble2) processes: Washed, polished, waxed3) shiny, clean, no dust, non-toxic4) size:1-3cm, 2-4cm, 3 ...