Aquarium Ornament Furnishing Stone Flat Loose Real Natural Slate Feature: These stone all are natural without chemicals. Stones are flaky, suitable for stacked. Natural slice stone are thick and thin and the shape are irregular. You can build a ledge or some caves for your fish to swim through. This natural slate stone are very suit to decorate smaller aquariums and fish tanks. Product Attributes: Material:Stone Color:Gray Shape: Irregular Quantity: 1 Pcs Size: About 400 grams weight in 4 pieces Package Include: 1 x Set (4pcs) Aquarium Stone Note: 1.Due to the light and screen difference, the item 's color may be slightly different from the pictures. Please understand. Make sure you don 't mind before you bid. 2.Please allow 1-5mm differences due to manual measurement.