MotorsSpecification:1.Model: 35H20HM2.Stepper motor size: 35mm*19.7mm3.Phase resistance: 16 ohms4.Step angle: 1.8 degree5.Type: 2-phase 4-wire6.Pulley wheel: 20 Teeth MXL Synchronizing wheel7.Weight: 100gPackage List:Stepper Motor x 1pcs