4 – 5 mm, 18lb, 7qt good to mix with medium akadama. Imported from korea, best dg, has rich mineral that prevents root rot, and helps with drainage, healthy root growth for medium to large size bonsai tree and doesn’t break down, bonsai lovers first choice for many years.The item “Best Korean DG medium (decomposed granite) bonsai soil 18lbs” is in sale since Sunday, February 03, 2013. This item is in the category “Home & Garden\Yard, Garden & Outdoor Living\Gardening Supplies\Fertilizer & Soil Amendments”. The seller is “houseofbonsai” and is located in Lakewood, California. This item can be shipped to United States.