Specification Binding : Misc. Brand : POPETPOP Color : picture 1 Label : POPETPOP Manufacturer : POPETPOP MaterialType : stone Model : P55XO14IW15JV PackageDimensions_Weight : 0.2160530167600 PackageDimensions : L:11.81102361000 X W:11.81102361000 X H:1.96850393500 PartNumber : P55XO14IW15JV ProductGroup : Pet Products ProductTypeName : PET_SUPPLIES Publisher : POPETPOP Size : 2*2*3.5cm SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/41fiVtpAZRL._SL75_.jpg SmallImage_Width : 75 Studio : POPETPOP Title : POPETPOP 12pcs Air Stones for Aquariums - Ball Shape Air Stone Mineral Bubble Diffuser Airstones for Aquarium, Fish Tank, Pump and Hydroponics Air Stone Bar Weight : 0.2 WeightUnit : pounds