Machine-made pebble. 1. Various colors pebbles and different sizes. 2. Good price. Machine-made pebble----------------------------------------------------------------1.) Material: Natural stone2.) Colors: Black,red, yellow, white, gray,blue,green....etc3.) Sizes: 1-2cm, 2-4cm,4-8cm, 8-12cm, 12-16cm, 16-22cm, above 22cm...4.) Package: Jumbo ton bag. Or 25kg &50kg bags, wooden pallets5.) Surface: ...