Specification Binding : Unknown Binding Brand : PINPOINT by American Marine Inc. Label : American Marine Inc. Manufacturer : American Marine Inc. Model : 4-7PH-10pc NumberOfItems : 10 PackageDimensions_Weight : 0.54895103238 PackageDimensions : L:4.0899999958282 X W:4.0599999958588 X H:2.199999997756 PartNumber : 4-7PH-10pc ProductGroup : BISS Basic ProductTypeName : LAB_CHEMICAL Publisher : American Marine Inc. SmallImage_Height : 64 SmallImage_URL : https://m.media-amazon.com/images/I/51zxLJxiQpL._SL75_.jpg SmallImage_Width : 75 Studio : American Marine Inc. Title : Pinpoint® High-Precision pH Calibration Fluids Kit (pH Buffer Solution), 10 Piece Set - 4.000, 7.000 Weight : 0.5 WeightUnit : pounds