10 20 Mm in Natural Stone

4-6, 10-15　15-20, 20-25　25-30 mm Natural Pebble Stone

Granite Crushed Stone ( 3-8 Mm, 5-10 Mm, 10-20 Mm, 5-20 Mm, 20-40 Mm, 25-60 Mm, 20-70 Mm, 40-70 Mm)