... years in stone business 2. Size: 1-3mm, 3-5mm, 5-8mm, etc. 3. Color: white, black, yellow,red ... , grey Small round white cobble stone Characteristics of pebble cobble ... etc. 3. Color: color mixing, red, black, yellow, white, gray, etc. 4. Usage: Garden decoration materials, home decoration ... , according to clients' need. Small rounnd white cobble stone