Size as picture. 16x15x10cm. Comes with 2 mini grasses and 2 large grasses. The product uses gypsum, polyethylene, plastic, environmentally friendly pigments with stable properties. Under normal circumstances there will be no discoloration. Because it is brand new and is shipped sealed in small boxes. So there will be a slight smell. Thank you for your understanding. After washing and airing with warm water, the smell will disappear in a short time, compressed and curled, the sheets will stretch. Due to the particularity of the goods, they may be damaged during transport. If you receive damaged goods, please contact us and we guarantee a full refund or replacement. We also have other types of aquarium decoration products. Such as artificial aquatic plants in different colors and sizes, artificial rockeries and artificial driftwood.