SNW Aquarium Ornament Fish Tank Decoration Artificial Mountain Simulation Windmill Water Tanker Landscape Decoration Crafts Material: Resin Size : Length*Height: approx 5.9"*4.7"/15*12 cm. After connecting oxygen pump, water tanker will rotate with the bubble, it is very interesting. It is suitable for salt and fresh water. It is great to decorate your aquarium all the time with minimum responsibility and maintenance. Due to the light and screen difference, the item's color may be slightly different from the pictures.