Specification Binding : Misc. Brand : Greiner Bio One Label : Greiner Bio One International GmbH Manufacturer : Greiner Bio One International GmbH MaterialType : Polypropylene Model : 227283 NumberOfItems : 300 PackageDimensions_Weight : 5443.20399999999 PackageDimensions : L:1 X W:1 X H:0.285714 PartNumber : 227283 ProductGroup : BISS Basic ProductTypeName : LAB_SUPPLY Publisher : Greiner Bio One International GmbH SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/31GDn+nB1sL._SL75_.jpg SmallImage_Width : 75 Studio : Greiner Bio One International GmbH Title : Greiner Bio-One 227283 CELLSTAR Polypropylene Centrifuge Tube with Blue Screw Cap, 50 mL, 30 mm Dia. x 115 mm L, Sterile, Conical, V Bottom, Light Protection Tube, 12 Racks of 25 (Pack of 300) Weight : 5443.2 WeightUnit : pounds