-Professional QC team -Finish: Polished, Tumbled etc. -Size:Customerized -Origin: China 1. Product information Materialpebble stone, river stone, cobble stone, wash pebble stone colorblack, white, yellow, red, pink, grey, green, beige etc.Surfacepolished, tumbled, natural etc.size1~2mm, 2~4mm, 8~12mm, 12~16mm, 16~20mm, 20~30mm, 30~50mm, 50~80mm or other size as per customer’s requirement.Quality ...