... various colors 3.Fast delivery time Grade A Black Pebble StoneSpecification Product Polished Black Pebble Stone (Grade A) Color mixed, ... white, black, green, red, yellow, pink, etc. Size 6 ... 30-50mm, 60-90mm, 100-150mm, etc. Finished Natural, polished, tumbled. Usage driveway, home decorations, garden, landscaping, decoration ...