DescriptionThis item is a simulated shell designed fish tank ornament,which can be used for water and some other environments. These petfishes freely shuttle among this decoration, which is eye-catching.There is movement in the quiet, and the scenery is beautiful.Features-Color: Blue -Material: Resin -Size: 9.00X7.00X7.50cm/3.54X2.75X2.95in. - When connecting the air pump tube,it can make air bubble, your fish can have fun with the air bubble.- Manufactured with eco-friendly and premium resin material to look extremely beautiful and delicate.- This delicate and creative shell fish tank adornment looks vivid, provides a playing place for your fish.- With premium material, they are colorfast even stay underwater for a long time.- Safe for aquatic fish and shrimp, very suitable for water environment.- The air stone design can produce oxygen to a certain extent.