Natural Black Cobble Stone 1.natural material 2.size:0.5~1cm /1~3cm /5~8cm / ... 8~10cm 3.type:highly polished 1.Material:Natural black cobble Stone2.size:1-3,3-5,4-6.6 ... ,40-50mm etc,or as per your need 3.Colourwhite, black ,red, dark green, lighte green ,greenjade,wood,sea blue,pink ... 8.Minimum Order: 1*20' FCL. Mixed color ordering acceptable natural black cobble stone