Specification Binding : Misc. Brand : Thomas IsAdultProduct : false Label : Thomas Scientific Manufacturer : Thomas Scientific MaterialType : Aluminum Model : 949421 NumberOfItems : 1 PackageDimensions_Weight : 1.15 PackageDimensions : L:4.699999995206 X W:3.599999996328 X H:2.49999999745 PartNumber : 949421 ProductGroup : BISS Basic ProductTypeName : LAB_SUPPLY Publisher : Thomas Scientific Size : 20 Wells, 11.5mm Well Diameter x 38.1mm Well Depth, For 2mL Eppendorf Tubes, SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/31f9wi64bZL._SL75_.jpg SmallImage_Width : 75 Studio : Thomas Scientific Title : Thomas 949421 Anodized Aluminum Microcentrifuge Tube Single Heat Block, 20 Wells, 11.5 mm Well Diameter x 38.1 mm Well Depth, For 2mL Eppendorf Tubes Weight : 1.2 WeightUnit : pounds