Specification Binding : Misc. Brand : Penn-Plax Label : Penn Plax, INC. Manufacturer : Penn Plax, INC. Model : FORB2 NumberOfItems : 1 PackageDimensions_Weight : 0.2149999998197030210 PackageDimensions : L:8.599999991228 X W:4.799999995104 X H:2.099999997858 PartNumber : FORB2 ProductGroup : Pet Products ProductTypeName : PET_SUPPLIES Publisher : Penn Plax, INC. SmallImage_Height : 50 SmallImage_URL : https://m.media-amazon.com/images/I/41LzKFPhiTL._SL75_.jpg SmallImage_Width : 75 Studio : Penn Plax, INC. Title : Penn-Plax Free Floating Rock Weight : 0.2 WeightUnit : pounds