Bonsai Jack 1/4 inch 2 Gallons Pine Bark Fines, 2 Gallons The cleanest and safest bonsai soil additive guaranteed. Organic bonsai soil additive Consistent sizes, ready to use, no sifting required. Amazing water retention Available in 2 Quart, 1 Gallon, 2 Gallon, 3.5 Gallon, 7 Gallon, 14 Gallon and 28 Gallon SKUs