Specification Amount : 59.99 Binding : Misc. Brand : Simple Deluxe CurrencyCode : USD Label : Simple Deluxe Manufacturer : Simple Deluxe Model : 4 X 2 Inch Large Air Stone PackageDimensions_Weight : 15.2 PackageDimensions : L:11.02 X W:8.66 X H:4.65 PartNumber : PTAIRS24X20 ProductGroup : Pet Products ProductTypeName : PET_SUPPLIES Publisher : Simple Deluxe Size : 20 Pack SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/51UBfyYjcqL._SL75_.jpg SmallImage_Width : 75 Studio : Simple Deluxe Title : Simple Deluxe 4 X 2 Inch Large Air Stone Cylinder for Fish & Plant in Aquarium and Hydroponics Air Pump, 20 Pack Weight : 15.2 WeightUnit : pounds