ITEM: New Genuine Japanese Hyuga Pumice for Orchid Plant Bonsai Tree Soil - Japanese soil mixes usually include Akadama, Kiryu Hyuga Pumice. - Works well with Akadama or other growing medium and compost. - Also used for bottom layer in the pot to prevent root rot. - Light weight, porous volcanic rock similar to pumice. - Product of Japan PLEASE NOTE: This product contains a small amount of debris, is a normal phenomenon, since the transport process can not avoid friction, pressure and other circumstances lead to some of the powder situation. Thank you for your understanding SIZE: Large Particles are approximately from 12 mm?25 mm VOLUME:US Dry Gal. (Item will be repackaged and shipped without original bag) 2.5 Quarts = 10 Cups = 0.625 Gal. 2 Gal. = 8 Quarts = 32 Cups 3 Gal. = 12 Quarts = 48 Cups SHIPPING: - Hyuga pumice will be sent in a resealable zip bag or USPS priority mail box. - This shipment cost cannot be combined with other items.