Specification Brand : Longs Motor Label : LONGS MOTOR Manufacturer : LONGS MOTOR MaterialType : lead PackageDimensions_Weight : 8.2893810512 PackageDimensions : L:12.0472440822 X W:7.8740157400 X H:2.9921259812 ProductGroup : Home Improvement ProductTypeName : ELECTRIC_MOTOR Publisher : LONGS MOTOR SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/41XqSA31IqL._SL75_.jpg SmallImage_Width : 75 Studio : LONGS MOTOR Title : 10pcs Nema 17 Stepper Motor Bipolar 48mm Body 55Ncm Torque 2.8 Max 4 Lead W 2.5 A with 1.8 Step angel for 3D Printer CNC 10PCSÂ   Weight : 8.3 WeightUnit : pounds