ITEM: Pebbles For Bonsai Humidity Tray And Bonsai Tree Top Dressing -Decorative polished river rock. -Imported from China. -3.0 lbs SIZE: Approx. 3/8" to 1/2" USAGE: -Evenly cover the humidity tray with these pebbles, and fill with water. -In order to provide a humid environment for the bonsai tree, keep some water in the tray at all times. -Do not allow the water level to be above the pot's drainage hole(s). -Do not let the bonsai pot seat in water. -3.0 lbs should be enough to cover two 9"x6"x1" humidity trays. Note:Tray and Plant are NOT included,for display purposes only. SHIPPING:Pebbles shipment cost cannot be combined with other items.