Graces Dawn Aquarium Fish Tank Pine Bark Stone Shape Landscaping Decoration Features: A- is random shapes, you can shape you want made (Including a combination of one or two stones) Good for decoration and use on a planted tank The most popular stone that people use for aquascaping Suitable for micro-landscape, small aquarium, decorative ornaments, etc. Material: Seiryu Stone. Stone Note: 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.important hint:the product is a random composition of 1-2 stones, can not specify the size of the stone.