Specification Binding : Electronics Brand : waveshare Label : Waveshare Manufacturer : Waveshare Model : ST3215 Serial Bus Servo PackageDimensions_Weight : 0.1 PackageDimensions : L:3.79 X W:2.59 X H:1.57 PartNumber : ST3215 Serial Bus Servo ProductGroup : PC Accessory ProductTypeName : COMPUTER_COMPONENT Publisher : Waveshare SmallImage_Height : 56 SmallImage_URL : https://m.media-amazon.com/images/I/312R3+KF2FL._SL75_.jpg SmallImage_Width : 75 Studio : Waveshare Title : waveshare 30KG High Precision and Torque Servo Motor Metal Gear ST3215 Programmable 360° Magnetic Encoder Serial Bus Servo for Robot Project,Two-Way Feedback, Servo/Motor Mode Switchable Weight : 0.1 WeightUnit : pounds