Specification Binding : Misc. Brand : PINPOINT by American Marine Inc. Label : American Marine Inc. Manufacturer : American Marine Inc. NumberOfItems : 20 PackageDimensions_Weight : 1.27206725174 PackageDimensions : L:4.6850393653 X W:4.4488188931 X H:4.2913385783 PartNumber : 400mV-20pc ProductGroup : BISS Basic ProductTypeName : LAB_CHEMICAL Publisher : American Marine Inc. SmallImage_Height : 56 SmallImage_URL : https://m.media-amazon.com/images/I/51IF-9+TonL._SL75_.jpg SmallImage_Width : 75 Studio : American Marine Inc. Title : Pinpoint® High-Precision +400mV ORP/REDOX Calibration Fluids (Buffer Solution), 20 Piece Set Weight : 1.3 WeightUnit : pounds